A few points to the repetitive comments I keep seeing:
1. Bitcoin is not a Ponzi scheme. Various cryptocurrencies operate in such a manner, but Bitcoin and Ethereum have value propositions: settlement and programmable money respectively. Crucially, these projects are still in a growth phase. More projects are being built on Bitcoin (e.g. Avanti Bank) and Ethereum (e.g. Uniswap) and more institutions like Tesla, MassMutual, and Square have a position in it. Banking institutions are working on supporting Bitcoin.
2. Bitcoin pricing is on a log scale. Dropping to $36k from $50k is not a concern on this scale. If it drops below $10k, there might be some nervousness but Bitcoin's fluctuations have almost never deviated significantly in its 11 year history.
3. Bitcoin is not a currency. How do we know? You can't price the components of a Big Mac in Bitcoin. Again, it is in a growth phase which is what people like Taleb don't understand. When you can price a Big Mac in Bitcoin then maybe it is in some form a currency (not directly, but perhaps indirectly using Lightning or another L2).
4. A lot of smart people are invested in crypto: a16z, USV, Paradigm. These aren't greedy VCs -- it's their job to make returns for institutional investors who are often pension funds or charitable endowments, so if it a "Ponzi" then they are fools. I do not understand how every time cryptocurrency comes up armchair HN users come along and comment when they, very apparently, have almost no understanding of the topic. It's like coming in and starting to discuss how L1 cache works when you aren't a computer engineer or don't have an active day-to-day interest in the matter. Why waste people's time with your vacuous comments? It's like some kind of therapy. "Crypto sucks!" Reinforcing feel-good Circle-upvote is all it is.