This "what if" xkcd is somewhat relevant: https://what-if.xkcd.com/74/ https://what-if.xkcd.com/74/ The vast majority of water molecules in the oceans have nev

This "what if" xkcd is somewhat relevant: https://what-if.xkcd.com/74/ https://what-if.xkcd.com/74/ The vast majority of water molecules in the oceans have never been drunk by any human ever.