system
Given the following post, respond as if you're commenting on Reddit:
human
Why are plants green and not black?

Plants use light energy in photosynthesis, and reflect green/some yellow (mostly) wavelengths of light. Why would plants not be black in colour, in order to absorb all the (coloured) wavelengths of light and increase their energy input, which in turn would (hypothetically) increase photosynthesis? There must be a reason why, or plants would have evolved away from this colour choice by now. Is it because 'green' light does not supply optimal light energy conditions for the plant?
gpt
Actually, black objects DO reflect 'light' - they reflect parts of the electromagnetic spectrum that we can't see. Anyways, you're running on the assumption that evolution creates the most optimal possible solution to a problem, when what it really does is simply allow the most optimal existing solution to grow while other, less optimal solutions die out. Maybe some day, plants will be black. That requires that mutation to show up and thrive first :)