> The energy is being paid for though, so it's competing in the same energy market as everything else. "Waste" becomes entirely subjective at that point.
Actually, "I can do whatever do with electricity, because I pay for it", is a wrong perspective, esp. in today's energy climate.
Let's put the fact that Bitcoin and Proof of Work systems are very energy inefficient as of today, and paying for it doesn't make this inefficiencies right.
Today, supercomputer centers discuss about reducing capacity, or add downtimes. CERN is discussing about temporarily shutting down some experiments, incl. accelerator ring. Hotels in Europe is fixing (locking in fact) their rooms to 18 degrees Celcius, and turning off heating the second events/conferences end. Last, but not the least storefronts are turning off their extremely efficient LED lighting at nights, after stores close.
In this climate, running a very inefficient network which uses equivalent energy to a small-mid European country "just because we pay for it" is wrong on many levels.
I'm normally very lassiez-faire person, but in the face of this energy crisis, climate change and other existential threats looming, saying that "we can do that because we pay for it", really grinds my gears. It's just carelessness. I don't know when we have detached from ethics this far, and this is disturbing (AI has the same problem for different reasons, but let's not digress).
Ethereum's Proof of Stake migration is something I support. I still don't believe in cryptocurrencies and all utopia surrounding it, but at least one step in a right direction.
> It's naive to think it's already failed when it's barely learnt to walk.
I don't think it's failed, but it has not won any battles either (yet alone the war). It's just another instrument which will be normalized under banks at most. I'm saying that it won't arrive where people dream, but somewhere else, and that place will be boring, if it ever arrives.
Any people evangelizing cryptocurrencies are excited for small money (personal finance), any people evangelizing it for medium-sized money (hedge funds, etc.) are running Ponzi schemes. This is not a good outlook from my perspective.