I don't see many machines that keep running for 100 years straight. Yet, I often see humans in the hospital that have. It's wild to think that a heart faithfully beats for a century or close to it.
Discussion
The human body is amazing, indeed.
But to be fair; it keeps replacing and repairing its cells all the time.
There are almost no machines that are maintained in a similar way (also while still running)
Exactly. My point here is that natural machines are sometimes better.
Scale, by Geoffrey West is a good read