you would have to ask Valve.
I think that it was imperative in the 90's to associate anything mathematically scientific with your product so that it impressed the 14 year olds enough to badger their mums for money to waste on software.
(
Pasanonic 's been known to cause insanity in laboratory mice,
Fri 11 Jan 2008, 18:28,
archived)
My ears
they burn
(
Mr. Ilby,
Fri 11 Jan 2008, 18:34,
archived)