I like how mathematicians solve things because they look fun and then later everyone is astounded that the solved problem has some amazing, unexpected, and useful real-life application, and the mathematicians are like, "yeah, neat..." but they are already working on their next puzzle just for fun.
@Azariah My former high school’s maths teacher, Hannu Sinisalo, famously said: ”The less mathematics has to do with reality, the better. It’s not necessary to have anything to do with truth, anyway.”. 😅
"...and we don't understand this at all." When he says this, there is a childlike excitement in his voice. I guess that this goes to show that though it's exciting to understand things, it's can also be exciting not to.
I caught that too. He was almost reverent when he said it, loving the challenge and mystery as much as the beautiful solutions. That was my favorite part of the entire video.
omg I first read that as Parker going to space... then had the image of the space station come to mind... all those square spaces and a Parker in them... woe betides the ISS
Sloane was 79 at the time of this video's publication. Besides being an incredible mathematician he's an avid rockclimber. Seriously, Neil Sloane has managed to mathematically manipulate his age to stay so young.
The way he is talking lmao its seductive to be honest. Anyways, almost everyone on Numberphile is so passionate about their stuff, it's so amazing to see.
If you did the same pattern with squares, (square is the 2D version of a toothpick) the squares would overlap and stuff and it would be a failure. So you can't have a 3D version.
How is a square is the 2D version of a toothpick? The toothpick is already 2D, even if you consider the toothpick a one dimensional line (instead of a six sided shape) it is still being arrange on a 2D plane.
I smiled when I saw his large piece of paper. I have books and books of this kind of stuff from a phase I went through in the 90's. Complexity from simple rules is absolutely fascinating.
Oh my god. I can't even. I swear, i encountered the first pattern for myself via bored doodling back in school like 10 years ago and drew this pattern everywhere in notebooks cause it looked so pleasing. Thank you for showing it in an actual video.
That sort of thing happened to me with Matt Parker’s video on pouring equal-strength cups of coffee from the same pot. I remember having OCD symptoms as a kid, (I’ve gotten them over them since then), so when I would tap one of my feet by accident, I would feel compelled to tap the other. But, since I tapped one first, let’s say my left one first for example, I would feel compelled to tap them both again, but with the right one first. But, because the _first_ first tap was with my left foot, I would have to do the same sequence of tapping, but flipped in order to even things out, and this would go on as long as I could keep track. Altogether, I ended up with a sequence going something like LRRLRLLRRLLRLRRL... The sequence was mentioned in one of Matt Parker’s video as the best way to “even out” things given certain conditions.
@@mvmlego1212 exactly like me. I ve gotten over it too, even if not completely. For example, when I'm programming, everything has to follow a certain order, similar constructs must be aligned, no memory leaks must be present or I can't leave my programming session and so on (which is not necessarily a bad thing, since i'm still in control). But when i was a kid, i had the same "tics" you described, plus many others, and "almost" couldn't resist them (almost because i didn't even try really). For example if i was going down a spiral staircase, i used to count how many times i rotated until I've come to the end, and rotate that many times in the opposite direction. When i noticed that things were starting to go out of control, like long sequences to balance everything out as you described, i said: I'm gonna provoke everything that i hate on purpose, and unbalance it as much as i can, let's see what happens. Nothing. Never had the strong need since then. Only difference with what you wrote is that my sequences were a little different. For example, i touch the wall with my right hand, using a force on a scale 1 to 10 of 5. I have to do the same with the left. I try, but hit with force 7. Now i have to do right 7 and left 5. I do left 5, but right 6, and so on.
I also started bored doodling the drawing what they call the toothpick pattern for more than 15 years and maybe more than 20, and analyzing it to see if it contains anything useful. I have never cared how many lines there were a n-iterations (like this wonderful video). Until seeing this video today, I thought I was the only one.
This was one of my favorite Numberphile videos. It was absolutely flabbergasting to see the patterns unfold like that. When he brought out the hexagonal cellular automaton analysis paper, it really showed his passion.
"We're at a table. We have tooth picks. We notice that each tooth pick has two ends." Reminds me of when we rolled low on a perception check. Except not even then did we notice that the door has two sides.
I love the hex, because the pattern is so much more complex. You get repeating bits, but slowly those bits grow into larger patterns as you get more growing hexes! So beautiful! And lots of triangles in its shape as well.
One of the best videos on the channel, imo! Very interesting, very mathematic AND aesthetic, simple yet complicated, and not arbitrary... I want moar of this! :D
how the heck does the replicator work? it seems like magic. I drew a smiley face and an arbitrary picture, and both got replicated perfectly. In the simulator I was using, the field was limited, and interestingly, when it hit the corners it actually produced a mirrored version of the original. Even more interestingly is that the simulator didn't consider the diagonals, only the direct neighbours.
It is basically modular arithmatic. It works as long as the neighborhod is symmetrical so hexagonal, triangular, exctended Neumann neighborhood ... all work.
Are you aware of an artist called A Michael Noll? He made some of the earliest computer art, one of which was a series of versions of a Mondrian painting
Brings back memories. Back in the Eighties, I read an article in Scientific American on cellular automata which led to a fruitful period of learning to program my new Commodore 64, first in Basic and then when that was too slow, with opcodes, reading, processing and then writing directly to the screen memory, one pixel at a time. You can now find websites with such wee programs you can play with.
I used to replicate the first toothpick pattern with cards to build a squared base for many houses of cards. It's a pretty strong structure, and now I can know exactly how many cards is needed depending on the size of the base. Thanks.
Awesome... just recently I looked up a sequence on OEIS. Then I wanted to know who made that database. And I found out, it was him. And now we have him explaining cool stuff here. Almost as amazing as replicating pixels.
I love when you see a magnification of a fractal pattern that diffraction type patterns come and go. I swear after so many decades of studying it....it seems like it communicates something sometimes that way...a higher order of the pattern revealing itself. Trippy.
for somebody totaly sucking at math my whole life , yet not able to resist not subscribing to this channel , i just think i wish i had this man as my math teacher... i just got high watching this its amazing
15 years ago I've been playing with Conway's Game of Life, in fact playing with the rules of the game, and found (after many trials and errors) that very beautiful and intricate patterns could appear with this set of rules: 1. Cell turns ON if it has 1, 3, 5 or 7 neighbours. 2. Cell stays turned ON only if it has no neighbours; otherwise it turns OFF. It behaves very much like that Fredkin replicator, because... now I see that it has pretty much the same rules. The variety of patterns of course depends on the starting position. Curious patterns and trends appear when we change the concept of the neighbouring cell - for example: besides the "classical" neighbours (which have common side or vertex with our cell) we will include the neighbours of the neighbours. There is plenty of this to observe and explore. Very nice and informative video, by the way.
Cliff and Neil are two sides of the same math-loving coin. One with a chaotic and excitable approach and the other with an equally powerful ordered and serious approach. Both seem to have the exact same passion for the field and I think it's beautiful.
On the hexagonal pattern, the inner pattern spawns four replicas of itself after reaching a power of two. In the replicas that grow in a more outwardly direction from the center it's easy to see the replicated pattern, but the replicas that fill the empty space between the points of the hexagon start interfering with each other to create a slightly new pattern in the middle of the new triangle.
This video is absolutely outstanding. I love cellular atomata and (without knowing mathmaticians think about it) i always draw those toothpicker patterns in class.
My favourite part of these videos is looking at these kinds of activities, and seeing how they can be applied to other areas of life and science. For example, immediately this makes me think of crystal growth, with each of the "toothpicks" being a different tiny crystal domain, a set of regular crystal lattices, forming into small crystals that then themselves form on specific sites of other crystals, and then continue to grow into a massive, chaotic, and yet still periodic, superstructure.
I would LOVE to see more working notes from mathematicians! Exciting to see what's on the horizon like that, and to glimpse at how they approach problems.
as a chemical engineer i can se how some of this sequences can be used in different models to predict a catalytic reaction, a really impressive work, great video ¡¡¡¡
Things I've found while trying to resolve the hexagonal one: if n=2^k | kEN, u(n)=6(n-1), and the following term will always be 6. The sum that describes the total of the square set holds for the hexagonal set out to about n=15 if you replace the 4/3 with 2 and the -1/3 with -1. There is a pattern in u(n), but every iteration of it I come up with collapses after a certain point. Adjusting it slightly makes it work again even further out, but even if it holds to 2^2^2^2^2^2^2^2, it holds for only the tiniest fraction of the amount of the time it would need to to prove it, and I don't have the math chops to analyze it that far out. This is super fun though, I can see why Neil has been cataloging these for as long as he has.
It looks like a really cool city design. Big boulevards down the center and then smaller boulevards crossing the quadrants and then breaking down into neighborhoods on side roads that are not through streets
This is like the 10 time that I listen this video, I really like the content and in general the content of numberphile, but the voice of this gentleman is really warming and calming, it relaxes me -_-
i love this video because the second the concept was introduced my first thought was different shapes so i was filled with glee when the other options were shown in the video!
I had this in the background while doing homework and I jumped when he started mentioning how things spread and how this might be useful for people studying epidemics. Kinda makes sense why RUclips decided to recommend this one
I actually stumbled into the same construction as the automaton from a different direction. Specifically, I was trying to fill as much of a infinite grid as possible with the similar placement rules. You can only fill in a tile that has 1 or 0 filled in neighbors. You can tile the board with a 1st step version of this (5 squares in each star). I later figured out that you could repeat the process forever and tiled the board with a single infinity step star. I iterated on them by creating 4 copies of the last step and then coloring the space in the middle. This design can always be made with these placement rules and gives you a larger portion of the board colored in then anything else I could find.
I love math for reasons like this. Makes me so happy, something so small(yet large) is so entertaining to me. I'm thinking about going back to college to get into physics or some type of science/maths heavy field. RUclipsrs like you and 3 blue 1 brown, Matt Parker, etc. You guys really make maths fun
I stumbled upon the toothpick pattern myself as a kid, in my case it was with playing cards, building a sort of one-story "house of cards" by propping up a playing card standing on its side by crossing it with two other cards, one on each end, then crossing the two ends of those two cards with other cards etc. The pattern very quickly grew unwieldy yet interesting enough to switch to graph paper, and I soon filled much of a graph paper notebook with lined patterns, and on the other side of each page lists of numbers keeping track of how many "cards" were added to each generation, fruitlessly trying to find a pattern in the numbers. Being a ten year old or so kid who would not ultimately be drawn to a career in mathematics that's as far as it went, but it's cool to see some actual competent mathematicians picking up where I left off
1. Excellent video. This kind of video shows the innate beauty of mathematics in a way that makes me want to pick up a pencil and start drawing iterations. One can only imagine how these sequences are related to others found in nature. 2. This would be an awesome screensaver.
Thank you for the work you put into the description! It is nice to know that relevant links will always be there :) checking out the toothpick simulator now
I was trying to code my own cellular automata once and with a test rules system I ran into the same patterns as this video! Fascinating. My ruleset was in the next iteration a cell is filled in with a value according to the number of neighbors that had the value “1”. Other than some fancy extra colors, it looks like I stumbled upon the Ulam Warburton Cellular Automata!
this is the best video on the channel i have come across, great work on the logo and graphic effects. this guy really loves what he does, and i relate to that, he hasn't given up!
There's something amusing in the fact that every time the game of life if mentioned in a numberphile video, the endcard shows the clip of Conway saying how annoyed he gets at the fact that every time someone mentions his work, someone brings up the game of life...
THIS IS CRAZY! I can assure yall I have never heard of this problem but this was my tactic to dealing with anxiety in a class by doodling this exact problem. I thought I was a genius to come up with this but thanks for shattering my ego. Still cool to see!
I was playing around with the simulator and If we go the ulam-warbaton rule and select "outward corner" we get the sierpinski triangle mirrored! That just blew my mind!
I like how mathematicians solve things because they look fun and then later everyone is astounded that the solved problem has some amazing, unexpected, and useful real-life application, and the mathematicians are like, "yeah, neat..." but they are already working on their next puzzle just for fun.
@Dr Deuteron life is as lie. Lol
Azzy that was a beautiful way of breaking down their dynamic.
mathematicians just think “hey it would probably be cool if i did this”
then they do it and then later realize “hol up, this is actually useful!”
Instablaster
@Azariah My former high school’s maths teacher, Hannu Sinisalo, famously said: ”The less mathematics has to do with reality, the better. It’s not necessary to have anything to do with truth, anyway.”. 😅
"...and we don't understand this at all." When he says this, there is a childlike excitement in his voice. I guess that this goes to show that though it's exciting to understand things, it's can also be exciting not to.
I caught that too. He was almost reverent when he said it, loving the challenge and mystery as much as the beautiful solutions. That was my favorite part of the entire video.
It's particularly exciting to *almost* understand things, even if you're actually nowhere near it
Complexity emerging from simple rules and simple starting conditions is always fascinating!
That was a wonderful video.
His voice is mesmerising.
You need to listen to him with headphones. Wonderfully well spoken and passionate.
it's called asmr
Waiting for Matt Parker to buy a space somewhere to start laying down as many toothpicks as possible in this configuration
omg I first read that as Parker going to space... then had the image of the space station come to mind... all those square spaces and a Parker in them... woe betides the ISS
A hojillion toothpicks in formation in low Earth orbit. What could possibly go wrong?
Yes, but he'd probably mess up somewhere and then we would end up with a Parker square on one of the corners.
Then Parker toothpic is on its way..😂😂
If there's a way to approximate/calculate pi that way, he might just do that.
Omar. Omar Poll .... yes 'yes' (whisper)
Creepy
Gollum
3:52
😁
@@philadams9254 You could call it *passionate*
It kinda scared me a bit xD
I like this professor. He is Numberphile's ASMR.
Aciek25 he should narrate some bedtime stories.
@@halberdier25 Yes (yes, hmm)
He has an excitable wizard feel, that's for sure.
He's like a soft-spoken professor Farnsworth
Tadashi Tokieda has a great deep voice. IMO, he has the best ASMR voice on this channel.
Sloane was 79 at the time of this video's publication. Besides being an incredible mathematician he's an avid rockclimber. Seriously, Neil Sloane has managed to mathematically manipulate his age to stay so young.
Is he still alive?
@@samueldeandrade8535 he's still going at 84 years young.
@@andrewince8824 thanks Math. And thanks rock climbing. Hahaha.
The way he is talking lmao its seductive to be honest.
Anyways, almost everyone on Numberphile is so passionate about their stuff, it's so amazing to see.
Jurrasic Grant Exactly. You can literally hear these guys' passion in their voices.
it's*
@@JorgetePanete 👏👏👏👏👏👏
He's got numberphilia
If this is how he talks in public, just imagine what he says to his mathematics in private.
Every pattern is very beautiful. I also want to see 3D version.
Just wait till someone releases a self replicating nanobot ai...
Well... I made one a while back.
The paturn I mean.
If you did the same pattern with squares, (square is the 2D version of a toothpick) the squares would overlap and stuff and it would be a failure. So you can't have a 3D version.
How is a square is the 2D version of a toothpick? The toothpick is already 2D, even if you consider the toothpick a one dimensional line (instead of a six sided shape) it is still being arrange on a 2D plane.
I smiled when I saw his large piece of paper. I have books and books of this kind of stuff from a phase I went through in the 90's. Complexity from simple rules is absolutely fascinating.
This is turning out to be a wonderful series. Neil Sloane himself giving us an inside peek of his marvelous encyclopedia entries. Keep em comin :)
best videos on this channel in years, tbh (but maybe I'm just too excited to learn about his database some more)
Hello other Aditya
Love everything about this guy. His knowledge, his wallpaper, his t-shirt.
Oh my god. I can't even.
I swear, i encountered the first pattern for myself via bored doodling back in school like 10 years ago
and drew this pattern everywhere in notebooks cause it looked so pleasing.
Thank you for showing it in an actual video.
Me too. It's possibly how it all started.
That sort of thing happened to me with Matt Parker’s video on pouring equal-strength cups of coffee from the same pot. I remember having OCD symptoms as a kid, (I’ve gotten them over them since then), so when I would tap one of my feet by accident, I would feel compelled to tap the other. But, since I tapped one first, let’s say my left one first for example, I would feel compelled to tap them both again, but with the right one first. But, because the _first_ first tap was with my left foot, I would have to do the same sequence of tapping, but flipped in order to even things out, and this would go on as long as I could keep track. Altogether, I ended up with a sequence going something like LRRLRLLRRLLRLRRL...
The sequence was mentioned in one of Matt Parker’s video as the best way to “even out” things given certain conditions.
@@mvmlego1212 exactly like me. I ve gotten over it too, even if not completely. For example, when I'm programming, everything has to follow a certain order, similar constructs must be aligned, no memory leaks must be present or I can't leave my programming session and so on (which is not necessarily a bad thing, since i'm still in control). But when i was a kid, i had the same "tics" you described, plus many others, and "almost" couldn't resist them (almost because i didn't even try really). For example if i was going down a spiral staircase, i used to count how many times i rotated until I've come to the end, and rotate that many times in the opposite direction. When i noticed that things were starting to go out of control, like long sequences to balance everything out as you described, i said: I'm gonna provoke everything that i hate on purpose, and unbalance it as much as i can, let's see what happens. Nothing. Never had the strong need since then. Only difference with what you wrote is that my sequences were a little different. For example, i touch the wall with my right hand, using a force on a scale 1 to 10 of 5. I have to do the same with the left. I try, but hit with force 7. Now i have to do right 7 and left 5. I do left 5, but right 6, and so on.
I also started bored doodling the drawing what they call the toothpick pattern for more than 15 years and maybe more than 20, and analyzing it to see if it contains anything useful. I have never cared how many lines there were a n-iterations (like this wonderful video). Until seeing this video today, I thought I was the only one.
@@mvmlego1212 you should have taken up drums in band
This was one of my favorite Numberphile videos. It was absolutely flabbergasting to see the patterns unfold like that. When he brought out the hexagonal cellular automaton analysis paper, it really showed his passion.
"We're at a table. We have tooth picks. We notice that each tooth pick has two ends." Reminds me of when we rolled low on a perception check. Except not even then did we notice that the door has two sides.
I love the hex, because the pattern is so much more complex. You get repeating bits, but slowly those bits grow into larger patterns as you get more growing hexes! So beautiful! And lots of triangles in its shape as well.
Me in 2019: oh that's pretty neat
Me in 2020: "how fast diseases spread" HA
So basically everyone’s a toothpick?
I'm so happy that people can work on things like this, humanity is doing some things right...
Most Numberphile videos are ver good. This one is better, I dare say an excellent
...pick.
I'd say terrific, even
@@toropazzoide terriPick
very*
This comment and every reply except this one now has a power of 2 likes. You're welcome.
never mind i can like my own comment
One of the best videos on the channel, imo! Very interesting, very mathematic AND aesthetic, simple yet complicated, and not arbitrary... I want moar of this! :D
how the heck does the replicator work? it seems like magic. I drew a smiley face and an arbitrary picture, and both got replicated perfectly. In the simulator I was using, the field was limited, and interestingly, when it hit the corners it actually produced a mirrored version of the original.
Even more interestingly is that the simulator didn't consider the diagonals, only the direct neighbours.
It is basically modular arithmatic.
It works as long as the neighborhod is symmetrical so hexagonal, triangular, exctended Neumann neighborhood ... all work.
Was this the simulator linked to in the video or a different one? I'd like to give that a spin!
I would listen to anything he said for hours. His voice is wonderful.
I love how he was incredulously like "who would ever design a gull toothpi..." and he just answered "Mark Pol" without skipping a beat.
Watching this actually caused me to stop what I was doing and play around with the simulations. Amazing content!
It's like Attenborough but with numbers.
The resemblance is there, despite that he's not British.
@@jivejunior8753 He is. He's British-American. Born in Wales
Looks like Piet Mondrian's work! Very cool.
Artifexian love you, love your videos
This was exactly my first thought. I immediately thought of taking these patterns and applying color to them.
Didn't expect to find you here!
Jeej, a dutch artist
Are you aware of an artist called A Michael Noll? He made some of the earliest computer art, one of which was a series of versions of a Mondrian painting
Brings back memories. Back in the Eighties, I read an article in Scientific American on cellular automata which led to a fruitful period of learning to program my new Commodore 64, first in Basic and then when that was too slow, with opcodes, reading, processing and then writing directly to the screen memory, one pixel at a time. You can now find websites with such wee programs you can play with.
“Good news everyone!”
„FARNSWORTH“
My sides!
I felt kinda bad for laughing but he does have that charm. I love to hear him talk. "just a slice" 13:22
*They Form a Certain Shapes and “Copy/Replicate themselves ”* ; *We No*
YES!
I've seen quite a few videos with this gentleman speaking and he is easy to listen to and interesting to relate to.
I used to replicate the first toothpick pattern with cards to build a squared base for many houses of cards. It's a pretty strong structure, and now I can know exactly how many cards is needed depending on the size of the base. Thanks.
"And then when you look at 32 generations", it's suddenly a QR code.
Awesome... just recently I looked up a sequence on OEIS. Then I wanted to know who made that database. And I found out, it was him.
And now we have him explaining cool stuff here. Almost as amazing as replicating pixels.
I would have loved having this fellow as a professor. Passionate people make learning easy.
Always thought Sloane's voice is oddly soothing and satisfying.
For sure
asmr
The Bob Ross of power of 2 patterns
Creepy!
@@LuisAlonzoRivero That is the weirdest descriptor that I can remember agreeing 100% with.
I love when you see a magnification of a fractal pattern that diffraction type patterns come and go. I swear after so many decades of studying it....it seems like it communicates something sometimes that way...a higher order of the pattern revealing itself. Trippy.
for somebody totaly sucking at math my whole life , yet not able to resist not subscribing to this channel , i just think i wish i had this man as my math teacher... i just got high watching this its amazing
I love Neil Sloane's passion! Thank you!
I don't understand maths but I am touched by the compassion and dedication of this wonderful man to his subject. Just beautiful!
This mans voice is delightful. I would love to hear more of it!
God I love this niel Sloane guy he's so relaxing and happy and always has interesting topics to me
15 years ago I've been playing with Conway's Game of Life, in fact playing with the rules of the game, and found (after many trials and errors) that very beautiful and intricate patterns could appear with this set of rules:
1. Cell turns ON if it has 1, 3, 5 or 7 neighbours.
2. Cell stays turned ON only if it has no neighbours; otherwise it turns OFF.
It behaves very much like that Fredkin replicator, because... now I see that it has pretty much the same rules.
The variety of patterns of course depends on the starting position.
Curious patterns and trends appear when we change the concept of the neighbouring cell - for example: besides the "classical" neighbours (which have common side or vertex with our cell) we will include the neighbours of the neighbours.
There is plenty of this to observe and explore.
Very nice and informative video, by the way.
Cliff and Neil are two sides of the same math-loving coin. One with a chaotic and excitable approach and the other with an equally powerful ordered and serious approach. Both seem to have the exact same passion for the field and I think it's beautiful.
Me during the day: Omg I’m so tired, I’m going to bed early today.
Ma at 3am: *Terrific toothpick patterns*
On the hexagonal pattern, the inner pattern spawns four replicas of itself after reaching a power of two. In the replicas that grow in a more outwardly direction from the center it's easy to see the replicated pattern, but the replicas that fill the empty space between the points of the hexagon start interfering with each other to create a slightly new pattern in the middle of the new triangle.
I love this channel and I love how enthusiastic mathematician are on here
Some people have voices just perfect for explaining abstract and incredible mathematical concepts.
I happy guys like this exist to ask and answer questions i would have never even conceived of
everytime he says "we do this forever" its gives me chills
I have never loved even a person as much as he loves mathematics, I feel jealous :(
The Parker Love
This video is absolutely outstanding. I love cellular atomata and (without knowing mathmaticians think about it) i always draw those toothpicker patterns in class.
My favourite part of these videos is looking at these kinds of activities, and seeing how they can be applied to other areas of life and science. For example, immediately this makes me think of crystal growth, with each of the "toothpicks" being a different tiny crystal domain, a set of regular crystal lattices, forming into small crystals that then themselves form on specific sites of other crystals, and then continue to grow into a massive, chaotic, and yet still periodic, superstructure.
I sense a Coding Train video coming out of this...
It's here
Thank you Mr. Sloane, very cool!
His enthusiasm is so contagious!
Thank you for the video! All of you are super awesome!
I would LOVE to see more working notes from mathematicians! Exciting to see what's on the horizon like that, and to glimpse at how they approach problems.
Dr Sloane is one of my heroes, thanks for interviewing him :-) !!!
I love this old mans passion!
as a chemical engineer i can se how some of this sequences can be used in different models to predict a catalytic reaction, a really impressive work, great video ¡¡¡¡
Things I've found while trying to resolve the hexagonal one: if n=2^k | kEN, u(n)=6(n-1), and the following term will always be 6. The sum that describes the total of the square set holds for the hexagonal set out to about n=15 if you replace the 4/3 with 2 and the -1/3 with -1. There is a pattern in u(n), but every iteration of it I come up with collapses after a certain point. Adjusting it slightly makes it work again even further out, but even if it holds to 2^2^2^2^2^2^2^2, it holds for only the tiniest fraction of the amount of the time it would need to to prove it, and I don't have the math chops to analyze it that far out.
This is super fun though, I can see why Neil has been cataloging these for as long as he has.
It looks like a really cool city design. Big boulevards down the center and then smaller boulevards crossing the quadrants and then breaking down into neighborhoods on side roads that are not through streets
Absolutely loved this one
First one looks like a frank-lloyd-wright window-screen. Reminded me of the guy who did the “dragon’s curve” as a tiled wall decoration...
This is like the 10 time that I listen this video, I really like the content and in general the content of numberphile, but the voice of this gentleman is really warming and calming, it relaxes me -_-
The passion this guy has is formidable
i love this video because the second the concept was introduced my first thought was different shapes so i was filled with glee when the other options were shown in the video!
That's so beautiful. Amazing.
Brady, you said that I was going to enjoy this video, and you were right! Lovely video, thank you!
hooray - we got there in the end!
close your eyes and enjoy 3:54
My favourite numberphile mathematician by far!
i really really like this kind of videos, about patterns and about fractals
The most beautiful thing I've ever seen people do with toothpicks
More of stuff like this please.
I had this in the background while doing homework and I jumped when he started mentioning how things spread and how this might be useful for people studying epidemics. Kinda makes sense why RUclips decided to recommend this one
I actually stumbled into the same construction as the automaton from a different direction. Specifically, I was trying to fill as much of a infinite grid as possible with the similar placement rules. You can only fill in a tile that has 1 or 0 filled in neighbors. You can tile the board with a 1st step version of this (5 squares in each star). I later figured out that you could repeat the process forever and tiled the board with a single infinity step star. I iterated on them by creating 4 copies of the last step and then coloring the space in the middle. This design can always be made with these placement rules and gives you a larger portion of the board colored in then anything else I could find.
I love how excited he is!!!
Gosh, what a delightful, gentle soul Neil is.
I love math for reasons like this. Makes me so happy, something so small(yet large) is so entertaining to me. I'm thinking about going back to college to get into physics or some type of science/maths heavy field. RUclipsrs like you and 3 blue 1 brown, Matt Parker, etc. You guys really make maths fun
I believe everything you say, Professor Farnsworth
I stumbled upon the toothpick pattern myself as a kid, in my case it was with playing cards, building a sort of one-story "house of cards" by propping up a playing card standing on its side by crossing it with two other cards, one on each end, then crossing the two ends of those two cards with other cards etc. The pattern very quickly grew unwieldy yet interesting enough to switch to graph paper, and I soon filled much of a graph paper notebook with lined patterns, and on the other side of each page lists of numbers keeping track of how many "cards" were added to each generation, fruitlessly trying to find a pattern in the numbers. Being a ten year old or so kid who would not ultimately be drawn to a career in mathematics that's as far as it went, but it's cool to see some actual competent mathematicians picking up where I left off
1. Excellent video. This kind of video shows the innate beauty of mathematics in a way that makes me want to pick up a pencil and start drawing iterations. One can only imagine how these sequences are related to others found in nature. 2. This would be an awesome screensaver.
Played around with this stuff in golly, it's super cool to see some of the math behind it.
Neil Sloane is the David Attenborough of mathematics
Really wise words in this interesting problem! And the Hendrix shirt on the man... I love that!
One of my favorites
The replicator of the hearts in the outro is amazing. Thank you.
ok, I didn't particularly enjoy the previous two videos with prof Sloane, but this one is amazing. I wan't toothpick design on my walls
Thank you for the work you put into the description! It is nice to know that relevant links will always be there :) checking out the toothpick simulator now
Love the Hendrix t-shirt feels very appropriate for this kind of fractal maths
I was trying to code my own cellular automata once and with a test rules system I ran into the same patterns as this video! Fascinating.
My ruleset was in the next iteration a cell is filled in with a value according to the number of neighbors that had the value “1”. Other than some fancy extra colors, it looks like I stumbled upon the Ulam Warburton Cellular Automata!
One of the most simple but interesting fractals, I've seen.
this is the best video on the channel i have come across, great work on the logo and graphic effects. this guy really loves what he does, and i relate to that, he hasn't given up!
There's something amusing in the fact that every time the game of life if mentioned in a numberphile video, the endcard shows the clip of Conway saying how annoyed he gets at the fact that every time someone mentions his work, someone brings up the game of life...
Amazing patterns! Love them so much!
Very beautiful patterns!
This is a wonderful one! Would love to see more content with Neil Sloane.
THIS IS CRAZY! I can assure yall I have never heard of this problem but this was my tactic to dealing with anxiety in a class by doodling this exact problem. I thought I was a genius to come up with this but thanks for shattering my ego. Still cool to see!
This video is the perfect response to all the haters saying this new guest has "ruined" Numberphile. Brilliant, beautiful video. More Sloane!
I was playing around with the simulator and If we go the ulam-warbaton rule and select "outward corner" we get the sierpinski triangle mirrored!
That just blew my mind!