Why on earth wouldn't I want to upgrade that?
Look into history at the things built with our bodies.
The only thing primitive is thinking that our bodies are not exquisite works of artistic science in this utterly beautiful universe.
When you worship the beauty and wonder of the universe, don't forget to include the most wonderful part: the future.
That's quite hyperbolic.
Is it unacceptable laziness to use a dishwasher, even though it's more efficient? A car to travel two miles? A remote instead of walking over to the TV? Cruise control on your car? A riding mower instead of a self-propelled walk behind?
We've always been pushing for ways that let us do things with less effort. I think we just need to accept that in order to stay healthy, we need to be active in ways we enjoy instead of by relying on doing things the hard way/slightly less easy way.
No food. No walking. No sleeping. No sex.
Tell me that you would want that.
Who wants to be a brain?