I have just read about it not long ago but I have also read somewhere before that by 2030, it is possible that ECDSA becomes vulnerable to quantum computing. This is 2025 which means 20230 is just 5 years away from now.
~snip~
You're bad at math - in 20230, it won't matter what happens to BTC anyway, and I'm pretty sure that people will find a way to destroy themselves and everything around them by then (and much sooner).