Chemical engineer here . also swimmer water polo player I can ' t give you a precise answer , if you could hold your breath for 30 seconds and swim like a semipro swimmer you might get your head of and breath , then get out . Otherwise you would not move and drown there . Water creates really strong bonds between their molecules the Hydrogen bonds . That ' s what creates that bubble effect when you drop a bit of water on the floor and what makes you spill water every time you try to pass water from one glass cup to another . Water tends to be together . My guess is that Jennifer Lawrence would die there <| sep |> no sourcing bud <| sep |> I still use it I just don ' t like to shape of it . My two right fingers always feel like they ' re hanging off the mouse .