Longevity

Maintenance is about longevity. The fundamental objective is to maximize the lifespan of something.

Better build quality is also a way to achieve this.

Not caring about lifespan because you are supposed to replace it anyway is another approach.

Should we:

1. Design to be easily replaceable?
2. Design to be easily maintained?
3. Design to last without maintenance?

These 3 are fundamentally different and cannot be optimized simultaneously.

I think nature optimizes for (1).