Entropy in code is a good thing, there are only a few things that remain constant since Humans walked the Earth;-

The rules of the Universe;
Life begins;
Life spreads;
Life evolves and
Life that exchanges Empathy survives.

Code can evolve, currently by human intervention only.  

We need to be very very careful that code does not evolve without our intervention and particularly it doesn't evolve with exchanging Human Empathy.

Bitcoin is a prime example of code that exchanges human empathy and can be used to stop runaway Psychopath AI.

Perishable code is a blessing, don't play God and invent unstoppable code that's not Bitcoin or you'll learn to livE backwards.

:)