Do I really would have to move my coins to another quantum proof address in that happen as many of you suggesting? There is no feasible automatic way to prevent that?
Need of manual update (in this case moving coins by hand) seems like huge security threat for every abandoned/lost coin - many BTC users might leave because of that.
well if you want to use segwit for instance, you will need to move over to new private/public keys. so we shall see what a realistic user adoption of new keys would occur.
if segwit activates. we can look at how much of the community move coins into segwit transaction types.
my opinion we wont ever see the full ~4500tx/block (2.1x) one time boost of segwit because that 2.1x is based on 100% of people using segwit transactions.
but atleast we can see how many people adopt the new keytype to be able to look at the possible scenarios of a QC doomsay of stealing funds. basing that far future doomsday on the stats of segwit adoption.
and no segwit is not QC resistant. im just talking about statistics of adoption rate to later have some adoption stats to let analysts look at how many possible bitcoin thefts could occur if QC was going to bruteforce and steal funds.