I’m not claiming that. It would still be environmentally ruinous (insofar as the energy production where miners live remains ruinous, which I guess is the foreseeable future) but at least the PoW would be actually contributing to tasks we wanted to do anyway that require large amounts of work. Hence the heavy emphasis on ‘somewhat’. I’m not saying it would be justified, but it would be far far far more useful to society.

Incidentally, why characterise non-profit medical research as “for Science!™)”? I hope we can both agree that understanding the human body is valuable to society and curing disease.

and state that such applications theoretically DON’T need Bitcoin or related blockchain monetization at all?

There are cryptographic requirements for securely conveying the necessary information for that application, an application that requires extremely limited identity and trust and centralization. I can’t think of an alternative covering those requirements that is plausible right now and not pure what-if (there is a big jump in feasibility between ‘change the proof of work algorithm’ and ‘invent an alternative to cryptocurrency’). If we can find an alternative to expensive PoW, wonderful!

Yes, if those requirements are relaxed, there are alternatives. If you’re fine with PayPal storing your personal and financial details and those of the recipient and exploiting you a little bit, then it’s an alternative. If your recipient is fine giving personal information, speed isn’t an option and you live in a country where sending cash in mail is legal and won’t get stolen, that’s an option. Of course, this all goes to shit if you’re trading with someone in a sanctioned country.

There’s not really any trickery.

(X)

Alright, what about Bitcoin is fraudulent? We agree it’s bad, but that doesn’t make it fraudulent (i.e. a scam)