@Vervs
What in my response to his ridiculous comment suggests that I believe opinions = trolling? I know the 'tone' of a written comment can sometimes be a bit ambiguous, but I think when you write things like "really?! really?!" and "BAHAHAHAHAHAHHAAHAAAAAA....." you make your intent fairly clear. He wasn't asking how certain the scientists are of the waters age, or what method they used to date it. He was simply trying to provoke others into arguing, and I'm helping him out by having to explain this simple concept in online behavior to you. Again, nice troll.