Occam's Razor


Occam's Razor

(philosophy)The English philosopher, William of Occam(1300-1349) propounded Occam's Razor:

Entia non sunt multiplicanda praeter necessitatem.

(Latin for "Entities should not be multiplied more thannecessary"). That is, the fewer assumptions an explanation ofa phenomenon depends on, the better it is.

For example, some claim that God caused himself to exist andalso caused the universe to exist - he was the "first cause" -whereas Occam's Razor suggests that if one accepts thepossibility of something causing itself then it is better toassume that it was the universe that caused itself rather thanGod because this explanation involves fewer entities.

The negation of Occam's Razor would suggest that anarbitrarily complex explanation is just as good as thesimplest one. (E.g. God and his cat created a robot calledSparky who built the universe from parts bought from a shop inanother dimension).

See also KISS Principle.