Cannot establish a link between blockchain technology and quantum computers.
I am keen on finding uses for blockchain technology in science. Do you think, for example, blackchain could be useful to tackle Turing NP problems, like the TSP (traveling salesman)?
The link is, that a quantum computer can decrypt all data encrypted in blockchain. In other words, all private keys for every wallet would be known and everyone with a quantum computer could withdraw your coins.
Oh my! A totally different ballgame, then. This technology, which is cutting edge today, would be completely obsolete!
As always. I don't see you writing this comment on a typewriter. Totally cutting edge a little while ago :P Same with data encryption. 70 years ago the Enigma machine was groundbreaking. Today every calculator would be better.