I have heard people talk about how quantum computing could kill Bitcoin, so would Bitcoin be able to "fork off" into a quantum resistant blockchain in a kind of hard fork when the time comes?
The suggestions that quantum computing could kill bitcoin are made by people who don`t know anything about quantum computers or the blockchain.
I think that the human civilization would need decades to make quantum computers cheap and available for the majority of people.I don`t see this as a threat,perhaps this is an opportunity to improve even further all the crypto technologies.