Quantum Computers Wallets, Encryption and and Bitcoin blockchain

[RabiaAbid]

I got talking to a guy who invests quite a bit of money in both Bitcoin and other cryptocurrencys. He talked a little about quantum computers in the future which will be able to crack wallet private key encryptions and will also make the blockchain useless and this is why you are seeing a move away from blockchain cryptos. If this is true how will Bitcoin adopt this new technology called quantum or can it even survive it ?