This is still true

If we could do that, we wouldn’t need bitcoin.

OR.... we could kiss the financial system goodbye, the military, everything that depends on encryption and then, we could fight the biggest Bitcoin blocksize-war' style over the solution.

I think about this quote pretty often. How do you come to “some agreement” without a few/some/many ppl getting screwed? How do you determine which transactions were legit and which were malicious?