Some experts posted their views.
Here's my little non-expert view
So what will happen to bitcoin? Bitcoin's creators have been clear that they intend this to become a currency of the future and not a speculative investment at a time when the rest of the world was struggling with stock market crashes in 2008.
As noted elsewhere, It's also part of a worldwide trend toward digital money so it will continue and will survive.
The fact that the Bitcoin protocol has been around for a while means that it will continue to evolve. You bet.
This is one reason Bitcoin could easily become a global currency while staying true to its original intentions.
However, to what extent the cryptocurrency will evolve as a payment system depends on global acceptance.
But what about Google's claim to have reached quantum supremacy? History has shown us that the will of the people and the masses can never be suppressed by any new tech. Where there's a will there will always be a way.
What do you all think?
I'm certain, that the paper pieces (I mean cash) won't be necessary for the future, there will be digital money to replace them, yes. Crypto will spread more than now, but maybe with a little more regulations. Anything else - I don't know.