> Cryptocurrencies are one (infamous) use-case of blockchain technology None of the "other use cases" have been interesting in any way. > The main blockchains

> Cryptocurrencies are one (infamous) use-case of blockchain technology None of the "other use cases" have been interesting in any way. > The main blockchains today are actually fully transparent So what? If the exchange between the cryptocurrency and real cash is not compromised, the only traceable thing is that some address which you don't know anything about got paid from another address which you don't know anything about. Again, real world ransomware mostly uses Bitcoin. > I don't think there is any distributed consensus algorithms that is not a tremendous energy burn today Anything that is not trustless, even physical voting, should be vastly more efficient. > Proof-of-stake […] Proof-of-spacetime Yeah, when did Ethereum promise a switch to proof-of-steak? Where is that again? Has anyone actually proven the security of any of these alternatives?