Especially in astronomy!
The famous joke about a bunch of scientists observing a cow from a train.
Look says the astonomer - all cows in America are black
No says the physicist - there are SOME black cows in America.
Then the mathematician says - there exists at least one cow which is black on one side.
(And finally the computer scientist says - look at the moo-moos !)
The Evolution of the Universe
David L. Alles
Western Washington University