It's I suppose possible to hit a simple optimization evolution hasn't found yet, but that's rarer than people seem to think. The major examples we have are either things which evolution lacks the tools for (e.g. mechanical prosthetics) or major biological leaps (e.g. your antibiotic example).
The things that look quick and easy like "eat some willow bark extract" have tradeoffs, even when they aren't obvious. Taking 'painkillers' to the extreme - morphine - makes it especially obvious. It's generally a terrible idea unless you've recognized that there's a problem and gotten someone else to take care of keeping you healthy while you're out of commission.
It's I suppose possible to hit a simple optimization evolution hasn't found yet, but that's rarer than people seem to think. The major examples we have are either things which evolution lacks the tools for (e.g. mechanical prosthetics) or major biological leaps (e.g. your antibiotic example).
The things that look quick and easy like "eat some willow bark extract" have tradeoffs, even when they aren't obvious. Taking 'painkillers' to the extreme - morphine - makes it especially obvious. It's generally a terrible idea unless you've recognized that there's a problem and gotten someone else to take care of keeping you healthy while you're out of commission.