Blockchain Technology and Sustainable Development | Dr. Mike Troilo | TEDxUTulsa
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- Опубликовано: 6 май 2019
- The positives as well as the downsides of blockchain technology and sustainable development. Mike Troilo, Ph. D., is the Wellspring Associate Professor of
International Business in the Collins College of Business at
the University of Tulsa. His research focus on the effects of
institutions including rule of law on entrepreneurial activity
across countries, particularly in transition economies such as
China. He worked as a consultant to the United Nations in
the Asia-Pacific region, and he received a Fulbright grant to
study economic development in Portugal. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx
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Qr are chain ?
It is good to see others realizing how blockchain can benefit our future for sustainability and the environment. All the bad press about its energy consumption fail to realize that even without blockchain our energy are going to continue to go up and we will still need to transition our energy production to greener sustainable sources
two solution helium mining and proof of stake or staking
All these things can be done in conventional system then why we need blockchain.
Hi this is Sanjay from India. I want make Sunstainble Blockchain system so please help me in this project.
"The new research out of Tsinghua University predicts Bitcoin’s Chinese
carbon footprint will reach its peak in 2024 releasing around 130
million tons of carbon. By that same year, Bitcoin mining will
reportedly require 297 terawatt-hours of energy and account for 5.4% of
China’s carbon emissions generated from electricity."
"New Scientist"
I'm not an expert of course. But I'm really worried about the carbon footprint this technologically arduous system seems to have. So could these sorts of heplful effects be realized with Proof of Stake systems?
This is so wrong.
Yes, blockchains are sharing access among all users, as do all other data storage technologies (including paper, files, databases)
Yes, data on a blockchain is practically immutable (not completely though). That is about the only real advantage of the technology.
No, updates are not guaranteed to be instantaneous. And certainly no more than databases (rather less, because the data is distributed).
No, single persons and organisations do still have the power to control it in reality (proof-of-work and proof-of-stake require many resources, giving control to those few with many resources)
Therefore, it is not open to everyone (yet). It is also not environment-friendly (because of the endless amount of copies of the data, and for now also still because of the suboptimal trust systems such as proof-of-work)
Let me explain it briefly.
A blockchain is the equivalent of making thousands of copies of each file and store them all over the world. It is indeed effective in preventing people from changing data (this would require access to 51% or more of the copies), but it is also wasting so many resources that it does not make sense…
The whole discussion about energy is something different. This is about deciding who can be trusted to add data, which originally was reserved for heavy computer systems, proven by mining difficult mathematical problems. This so-called proof-of-work mechanism requires several computers constantly calculating stuff, and as such constantly consuming energy. Bitcoin still uses this and that cryptocurrency consumes more energy than Argentina for example. An alternative is proof-of-stake, where the more heavy users of the chain are trusted more to add content. This solves the energy issue, but is not the best trust system. Some blockchains therefore work with a central authority, but then we are back to the problem who to trust as the authority…
But in contrast to the energy issue of the trust mechanism, the storage redundancy is a fundamental aspect of the technology, which can never be solved and which is a dealbreaker in my opinion.
It may be(come) more than just a trend. But it comes with a pretty high cost, which this video is ignoring or even challenging. In my opinion the environmental cost is too high to justify the use of blockchains, but my opinion does probably not matter.
I wouldn’t be surprised if this technology still becomes a new standard, because some influential people make big money with it and don’t care enough about the environment.
Hi this is Sanjay from India. I want make a Sustainable Bloclchain system so please help me in this project. Like how it develops