i think were at like 8 qu-bit (quantum bit? ) computing.. that lasts hours..and im not sure if thats just data storage. To say were going to hear news of a 32000 qubit computer any time soon seems unlikely.. I believe that was the power required to crack the sha 256...however to some this was more likely then bitcoin being a 1000$usd lol
Of course it is unlikely and would require a major breakthrough. I certainly do hope that it is highly unlikely! But breakthroughs do happen in technology. The greatest threat to a technology based currency is technology's progress itself.