The first part of this was a great summary if where we're at with the distant quantum computer threat.
I had a knee jerk reaction when at around 26:00. Not sure if it was kinda an off the cuff comment or if he's absolutely serious. He said that if a QC was able to steal all of the early coins (mainly Satoshis + lost coins) that we would have to roll back the chain. Actually, I was more surprised that Marty didn't pull him up on it and ask for more clarification.
Roll back the chain? Like Ethereum?
The other would be that the QC gets ~1m bitcoin and could dump on the market or just have stollen their way to be the largest holder.
I think both hypothetical outcomes in this situation are bad, but I'd like to hear more discussion over it.
Which one is worse?