What is this I don't even...
I'm trying to make sense of what he's saying so I can respond properly, but it sounds like he doesn't know what he's talking about... There are a lot of people participating in the discussion (who know nothing about technology/cryptography) who might be lead astray by tossing around a few $2 words (or I should say 0.148 BTC words lol).
He doesn't know what he's talking about. The algorithms we know for reversing ECDSA are not polynomial time. Unless he knows something about computational theory that the rest of the world does not, there is no reason to believe that it is even possible for there to exist a polynomial time solution. And with the exponential time solutions which are currently the best we know about, you could literally turn the entire observable universe into a 100% efficient computer and run it until the heat death of the universe, and you you're not likely to find a solution. Moore's law does not apply here.
I thought Shor's algorithm will break elliptic curve encryption once quantum computers are sufficiently large?