I am happy that my body is working efficiently.

A cut from last week is being closed right now by a process you could not describe if someone paid you to. It is running on a bowl of cereal.

Nothing you own converts fuel into work at that rate. Digestion, immunity, memory and balance all run at once, on roughly the energy budget of a light bulb, without anyone asking you to approve a single step.

The unnerving part is that all of it is happening while you read a sentence about it happening. Efficiency this complete is invisible by definition. You only ever meet the parts that break.