system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why haven't humans evolved to find water as delicious as sugar and salt when it is essential to our existence?
gpt
We do crave water. Have you never been thirsty? That's exactly what that is.

When it comes to our craving for salt and sweets and fats, it's because we need those things too but they aren't in wide abundance naturally, so we're wired to prioritize eating them when we encounter them.

And why not water? Because water *is* in abundance. The fatty part of our prey probably won't be there tomorrow. The water will.