The enhancement with written language already happened +10,000y ago, the enhancement with pocket calculators +50y ago. There are some bionic devices for locomot

The enhancement with written language already happened +10,000y ago, the enhancement with pocket calculators +50y ago. There are some bionic devices for locomotion, hearing, sight, cardio, epilepsy, but mainstream cybernetic enhancements haven't really kicked off yet. We still need to solve hard problems like durability, energy and biointerfacing.