Yeah, I pretty much said it’s not a fixed number for everyone. I said it’s typically determined by a person’s weight.

Disputed perhaps, but not disproven. At least, not to my knowledge. I would say the majority of doctors, biologists, etc still agree on “you should drink x amount” (typically depending on your body weight). But yes, I’ve heard of it being disputed. And as the other commenter said, I was also told that once you’re thirsty, you’re already showing signs of dehydration. Until it’s widely accepted that there’s no need to drink unless thirsty, I’ll stick to what I’ve been taught this far. Besides, I don’t like being thirsty. lol