"Let's talk some energy transfer principles. ...My Grandpappy always used to say "hot goes to cold." ...Things of a higher energy intensity state tend to equalize with things at a lower intensity energy state. ...Where there's differences, things tend towards equilibrium... You put a ball on top of a hill and you give it a chance to roll down the hill, that's what's going to happen... If you leave a big pile of sand outside long enough, it's going to flatten out. ...You take an ice cube and hold it in your hand ...heat goes out of your hand and melts the ice cube until that water becomes the same temperature as your hand. ...[V]oltage tends toward equilibrium ...If you have this ...high voltage [or current] ...stored in a battery ...[T]ake a wire and hook it from one side to the other ...It's going to equalize ...and the battery's going to be dead ..."