One of the primary solutions Bitcoin is supposed to solve is that it will evolve and be competitive forever, or at least as long as money is needed. In a world with quantum computation, unlimited energy, and abundance, money doesn’t serve as much of a purpose. Idk, half of the internet crashes whenever AWS or cloud flare goes down. Bitcoin is much more resilient then the rest of the internet infrastructure encryption aside.

The protocol itself isn't remotely threatened by quantum. Old coins are -- the risk is that we get a sudden supply influx of 20% of the outstanding coins. That is, a one time sale. Except that when it happens, banking rails will be threatened by quantum -- unclear how anyone offloads the coins at that point. Nah, this is paid for FUD to shake people free of their coins.

Unlimited energy would be a fun one, given that it'd violate the law of conservation of matter and energy. More energy through breakthroughs perhaps, but given that we still have parts of the planet using WOOD as their primary energy source (not even coal) the risk of a post scarcity energy economy seems far fetched at best. Even in Star Trek they needed to source dilithium to power their starships, despite having no use for gold, and the ability to send subspace transmissions. I'd bet on getting access to the pleasure planet of Risa long before infinite energy, or even enough to make money unnecessary.