How to blow someones mind

[Ltin]

I think you're thinking of the Grandfather Paradox. [spoiler]From Wikipedia: "the time traveller went back in time to the time when his grandfather had not married yet. At that time, the time traveller kills his grandfather, and therefore, the time traveller is never born when he was meant to be. If he is never born, then he is unable to travel through time and kill his grandfather, which means he would be born, and so on."[/spoiler]  I made some revisions to the Ship of Theseus Paradox.

When I first realized that, I didnt even know what a paradox was.

[SirPimped]

What if I'm color blind?

[Unit 33]

What if I'm color blind?

Well then it doesn't work. Thankfully not all illusions require full colour vision.