The same logic applied to the vast, often contradictory, purportedly science-based quantity of diet tips and the ilk, such as the health benefits of red wine and chocolate, would lead you to believe we know nothing about what a human body needs to survive.

Online public discussions of cryptocurrency never get past the stage of "is crypto even real?", so it's no wonder that discussions have moved to private Discords and invite-only subreddits. If, every time you tried to ask an in-depth question that would get an informational, insightful, and highly qualitative answer, and the majority of replies are of the level "hurr durr your question is teh stupids and you're an idiot for thinking about this", wouldn't you move away from the public eye?

Questions like: how does Bitcoin need to change in order to operate on an interplanetary scale (aka Mars' transmission delay)? or How best can a proof of work system be designed to be resilient to quantum computing?

Both those questions are actively being worked on and have interesting answers, though they are few and far between, but that doesn't mean they aren't being worked on. The people doing the work are too busy doing the work to talk about it, and the dilettantes are too busy repeating half-truths to each other for there to be the answers you seek on Twitter.