Hacker News new | ask | show | jobs
by pcwalton 1156 days ago
A proof that P=NP doesn't necessarily mean that NP-hard problems are solvable in any practical sense. The time complexity claimed by the paper, O(n^2 * m^3), grows quickly, and the constant factors may be high. In fact, I'd go so far as to say it's very unlikely that a P=NP proof would make any difference in practice, since SAT solvers are so good for real-world problems.

(I'm leaving aside the fact that cryptocurrency theft is a crime that most people would be disinclined to commit, as well as the extraordinarily high likelihood that this proof is incorrect.)

1 comments

> cryptocurrency theft is a crime

If you know the private key, then you own the coins.

At least that's the whole basis that crypto currency is founded on...

Except most legal systems don’t see it that way. When you say this, they hear “if you have a copy of the key to a house/car/etc, then you also own it”. Cryptocurrency theft is a crime by the basic definitions of the legal system.
That is not how the law works. It's equivalent to knowing your bank account number and routing number and making an unauthorized transaction.
That's just not how keys work. If someone finds the key to my house and uses it to open the door and take something, it's still theft.