When devs are getting their hands on these devices, can't a counter-defence (or attack) be introduced by them even at their understanding of 2 qubits to help figure out what type of actual attacks can destruct the memorandum code for Bitcoin? Can it be just attacking the value of Bitcoin or it will also destroy the whole economy?
So are you saying that developers are going to use it for good or not? I dont quite understand what you are trying to say. With the use of QC, you would use it to see what type of attacks would work on Bitcoin and how it could be prevented? (Thats the good part).
What memorandum are you talking about? Maybe you are talking about integrity of the code? Altering it would cause a lot of economical tragedy with Bitcoin. Loss in value etc.
Considering that over 84% of BTC has already been mined, I see it to be least affecting the niche but the thing is, Bitcoin is still 'not fully, but to some extent' vulnerable to this type of *imagination* and we should prepare ourselves for a situation if occurs in near future.
I think time will come when it does that but we are probably not alive anymore when it happens. Maybe there would be a great change with regards how we are currently using cryptocurrencies now.
Why not find out a technology that can prevent us from the attacks of QC? If QC and other things were imagined and have become truth now, there must be something that can abolish their twitches and burst the bubble before it becomes too big to stop you from breathing.
Approaching it where the problem is QC (theory only) it should be answered by the same powerful thing, QC. Its like fighting fire with fire, but everything is digital.
We are not there yet where its applicable already.