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What do you know that most people don't about the speed of light and red shifting? Most people would understand that both have been measured with a high degree of accuracy and precision.

@cnocspeireag light travels differen speeds in gravity. Newton's physics don't apply well to Mercury because the gravity well of the sun is too high. Einsteins theory of relativity fixed that problem. we only measured light with the reflection to the moon and back then divided by half. We don't know if the speed was the same in both directions, how could it be if we are traveling through the universe at hundreds of thousands of km per hour and light can't exceed a certain speed? it must be slower in one direction. now do it in high gravity. you'll get a different times according the Einsteins theory. light is traveling across many gravity wells and therefore their time and speed is not constant by definition. regarding red shifts, light shifts as it loses energy passing through hydrogen. if the amount of hydrogen between the observer and source isn't calculated it will appear to be farther away or moving faster than it is. hydrogen is 99% of space but some areas have more or less density. So we have these "constants" but we ignore variables that affect them. therefore everything looks bigger, faster, and farther away. we simply lack data and therefore created dark matter and dark energy as the modern Flagystatin. I didn't say anything unknown to modern physics. what we have here is confounding constants.

@@cnocspeireag Hi sorry I thought I replied. The speed of light is measured by shining a laser at the moon and measuring the time it takes to reflect and dividing it by two. assuming light has a maximum speed and it cannot travel faster than that maximum speed then the fact that our galaxy is traveling through the universe at hundreds of thousands of kilometers per minute we can assume that the light is moving at its maximum speed minus it's trajectory in the universe. we also know that Newton's laws of physics do not apply to Mercury because it's being affected by the sun's deep gravity well. Einstein's theory of relativity solved the Mercury problem. we know that light moves at a different speed as it passes through high gravity. we we have not measured the speed of light on Mercury so we don't even know the effect within our own solar system. now imagine light traveling through space and passing other galaxies on the way here. we see lensing and sometimes the same galaxy appears in different places with each one of these places showing us a different time of the Galaxy. for example we've seen a supernova in one of the copies so a few years later we were able to witness it in another copy. The next question is hydrogen. light loses energy as it passes through hydrogen which is 99% of space. space including within our own galaxy various drastically in its density. our solar system is currently in a low density portion of our galaxy and we'll move into a high density portion in a few thousand years. The density of space and the amount of hydrogens in between us and the light source is never calculated. so we have these assumptions of constants which are only true observations within our tiny bubble in space. we have extrapolated to assume that they would be the same throughout the universe. I don't know anything that physics doesn't already know. The problem is they also know they don't know these things and are coming to conclusions based on their limited knowledge. They occasionally find stars that are too big to exist and galaxies that are too old to exist. using ocom's razor we can assume that their measurements are wrong. since they need to add dark matter and dark energy into their equations to make them work then we know their measurements are wrong. it is more likely that they are assuming light is traveling faster without any obstruction in a 100% vacuum than it is. they're assuming things are much farther away than they are. these constants are confounding factors.

@@Quvan You're right, if light has a maximum speed then it must be relative to a central point. normally speed is relative to the observer. I assume they don't actually know the truth speed of light because they've only measured it on Earth. our measurements would be different depending on the direction that we're shining the laser because we are moving through space at hundreds of thousands of kilometers per minute. also light travels at different speeds based on gravity and it red shifts as it loses energy such as passing through hydrogen which is 99% of space. their measurements of light are based on laboratory conditions and/or shining a laser at the moon. like many laboratory experiments they don't apply accurately in the real world. They are not able to calculate the density of hydrogen atoms in space because it is not uniform. there's many things they don't know and they just use assumptions based on their laboratory experiments on Earth with our known hydrogen density and gravity. their math doesn't math properly so they've added in dark energy and dark matter. it's modern day Phlogystatin, the fictional material that alchemists use to explain fire. dark energy and dark matter is a made-up material to explain something that they don't know. The problem is their constants arent constant. Even they know this because their explanation of speed through deep gravity is that it slows and time slows. logically light moving through deep gravity would also. light moving through universe with low hydrogen density would move faster than light here on Earth near the sun's gravity

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