Don't think twice

Life is...funny.
Life should be...fun.

If aliens ever invade our planet it means they are mortal. Why do it now you might ask.
Because they are mortal! If they would be immortal they would wait forever. Have you
ever seen aliens? I don't, so they are immortal. Or they simply don't exist.
Because we are mortal, war is understandable. Otherwise we would wait forever for battle.
This means we probably do exist. Which is a good start. Alien's probably don't.
So you better make something out of life, as long as you agree to be mortal. We can
be immortal for about 80 years if you watch your back. So no battles.