why they say a perpetum mobil its imposible what about the drinking bird?

[Untamo]

Originally Posted by raaaid

would the universe be considered a perpetum mobile?

Simply put: No. As far the current theories(there are several) go, all of them come to some sort of an end.
1) Gravity wins -> Big crush(anti-big bang)
2) Gravity loses -> Dark death, all matter is scattered so thinly that two atoms can be found at distances that the galaxies have from each other now
3) in the event that there is an gravity equilibrium, everything will stay put, but all stars will eventually die, either go dwarf and shut down, nova, or collapse to a black hole. In the end, it will be dark, cold and dead.

But let's not worry, no one of us will ever see it