разница в мышлении программистов и физиков:

software is like sex - it's better when it's free - Linus Torvalds
physics is like sex. Sure, it may give some practical results, but that's not why we do it - Richard Feynmann

В результате для физиков-информатиков имеем -

work is like sex - I don't get paid and don't have any practical results, but who cares??