back up at 16k â,¬
also an interesting writeup on wired
https://www.wired.com/story/bitcoin-global-warming/
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also an interesting writeup on wired

https://www.wired.com/story/bitcoin-global-warming/
QuoteRight now, the hash algorithm is useless work, intentionally. It's burned. How about making it do something useful? It's a P2P network doing collaborative computation. What about making it find signals from aliens, or figure out how to make proteins useful to medical science, or solve real-world crypto problems and prime factorization? And but no. “I'll tell you why that didn't happen, and it's perverse,†Sirer says. “Had bitcoin been mined by doing something useful, then there would be a correspondence between useful work and the number of bitcoins you get … That creates a mental anchor point in people's mind for how much a bitcoin should cost.â€
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QuoteThe declining rewards put a cap on the total number of bitcoins that can ever be in the world. It's 21 million, and the current trend line leads to them being nearly all mined out around 2032.2 Once that happens, transaction fees will be the only reward built into the system. Some other cryptocurrencies, maybe more energy-efficient ones, will start looking more competitive. Right now, bitcoin looks increasingly like a tool for speculation rather than a viable, mainstream currency. And one scientific law that math, physics, and economics all share is this: Bubbles pop.