guess you all know the story of relative perception:

At some time, aliens land on our formerly nice planet,
they find devastation and destruction...not a single beeing is
alive...scared and terryfied they sit down on a black, burned rock
and contemplate...
One of them finds an old movie-roll, after some trials, they get the movie to run and then curiously look at the projection...It is an Mikey Mouse movie, with Donald Duck and Co.
Strange they say, this people where very funny, they would not have needed our pills against sadness.

Cheers

Leon