Quantum computers pose a threat to Bitcoin’s security. Developers are rushing to future-proof the network. Michael Saylor is unconvinced this is a problem.
People will continue their commitment to Bitcoin and accept that they will be robbed in the year 2039 when Q-Day happens. You can tell the holders to move to the new fork or move to a superior coin, but they will still want to get fucked rather than spend the time doing 6 mouse clicks, pasting a new address, and then pressing Send.
Honestly the most likely outcome is that they fix it with plenty of time to spare, the headline of this article is needlessly sensational. Post-quantum encryption is already a thing and Bitcoin has the backing to solve this
Honestly, it would require a scramble if they were starting from zero right now. Software development takes time, especially when quantum is involved and double-especially when money is involved.