That's not the point. The point is it's extremely difficult (pretty much impossible) to go backwards once you perform a hash function. Yes you can do the reverse but it might take you 2 million years...
Extremely difficult
only for you. The enemy developed the cipher they know better. You are applying the wrong algorithm.
Okay. It's possible to turn a 64 character digest into a five paragraph book report. You win. Bitcoin is evil. Now go to the pgp forum and tell everyone that they are not safe. After that go to the minecraft forum because notch is now a servant of the devil. Also, the five dollar bills in your wallet have cameras too small to be seen by an electron microscope that watch you constantly.