This just means that the language forces you to use more memory to make the computation reversible Quantum computing suffer from the same problem. There you us

This just means that the language forces you to use more memory to make the computation reversible Quantum computing suffer from the same problem. There you use the CNOT gate for example, because XOR is not reversible Some pointers https://en.wikipedia.org/wiki/Controlled_NOT_gate https://en.wikipedia.org/wiki/Controlled_NOT_gate https://en.wikipedia.org/wiki/Reversible_computing#Logical_reversibility https://en.wikipedia.org/wiki/Reversible_computing#Logical_r... https://physics.stackexchange.com/questions/270266/why-do-quantum-gates-have-to-be-reversible https://physics.stackexchange.com/questions/270266/why-do-qu...