What is the fisherman’s motivation for asking the genius if he really was in the vase?

This makes no sense. But uhm water?

is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it