You didn't read my post. I said O(2^N) which means basically computationally intractable for large N and even if Moore's law were to continue indefinitely it

You didn't read my post. I said O(2^N) which means basically computationally intractable for large N and even if Moore's law were to continue indefinitely it would still be computationally intractable for large N. O(N^2) problems, on the other hand, are far more approachable by software.