Well actually, it was a comment on a blogpost (I don't know what it was about). It said since if our world is a simulation, then it needs a computer to run on.

Well actually, it was a comment on a blogpost (I don't know what it was about). It said since if our world is a simulation, then it needs a computer to run on. And every computer needs a clock. So this statement changing its truth value could act as a clock.