Yes, if you point your ears at it, you will notice many sounds being utililized multiple times across different games and even movies.

The movie Smoking Aces used doom samples during the big battle enounter with those nazi guys, I got a chuckle out of that.

or Darth Vader "Nooooooooooooo"

It would be neat to hear that from the TEC every time you eliminated a TEC AI player.

P'ost production houses' liscense music and sound for many media mediums.

A thought is original if it is new to you and formulated by you. It's previous forumlation by another individual is meaningless.

So sure, eventually given an infinite period of time, all thoughts will be forumalted, but as mankinds mind is not infinite, there will always be a sense of originality, I wouldn't start worrying for that reason.

Realistically thoughts aren't new in anycase, they're mearly recognition of how something works (ie physicality being observed and paired together with another part of physicality).

An image on your computer is composed of pixels made up of 3 hues controlled by 256 layers of darkness each. So in a sense there are only a limited number of images possible.

But I still don't find myself getting bored.

Ugh! The Wilhelm Screams!!! My ears pick up on that like a cat hearing a tin of wet food opening. Except instead of arousing my hunger, my spine shivers as if Edward Scissorhands decided to scratch his back - and by "back" I mean a chalkboard.

Yeeeeaaaarrrrggghhh!!!! Hahahaha! Thanks for that, kyro