[PurpleRamen]

We do have some degree of it, but it's more on the realistic side of performance. The remaining body has to handle them after all, so it's hard to enhance performance beyond human limits for real. Maybe with some more decades of development.

But we've also learned that we don't need to change the body itself, when we can just enhance the tools we use. Smartphones are already seen as some sort of half-step towards humans becoming cyborgs. Similar have we now Exoskeletons, which are probably more practical than replacing a full limb.