Occam's razor (and why we use it)

This post provides an explanation of Occam's razor and why we use it - again, it's basically a transcription of a video that I made a couple of months ago (feel free to check it out):



Suppose you hear a vase break.

You go to the living room and there's little Jimmy, next to the broken vase. He says that a cat did it.

But you don't even have a cat in this household.

So, Jimmy says, some cat must have sneaked in from the outside.

You remember closing all the windows and doors.

So, he says, it must have entered the house before you closed them.