[Bounty: 200 Quatloos] Reversible computing

[drewcassidy]

As we all know, The Quantum is the next big business model. We need to make sure our codebase is quantum-ready by supporting reversible computing. All code in the repository should be converted into palindromes so it executes the same forwards and in reverse

[CounterPillow]

I really need this. OpenSSH has been warning me about my key exchange for ages, and I think this would fix it.