Yes!  I'm looking forward to that water engine that some guy invented that was all over the internet a few months back.  Just imagine....a car that runs on water....what could be better than that?  And if they can get a car engine to run on water, maybe they can get those big trucks and earth moving equipment, and airplanes and everything to run on water and....and....uh.......wait a minute!  Didn't I hear we might be running out of drinkable water soon????

So maybe we can just use hydrogen to power everything!  A hydrogen engine only puts out a little water vapor...uh-oh!  Isn't water vapor a green house gas????

Okay,  so maybe the guy with that perpetual motion machine can get his .....Oh forget it!