1. Jitter2. Noise ("electrical", RF/EMI, conducted/induced)
"Science is constantly proved all the time. If we take something like any fiction, any holy book, and destroyed it, in a thousand years' time, that wouldn't come back just as it was. Whereas if we took every science book and every fact and destroyed them all, in a thousand years they'd all be back because all the same tests would be the same result."
Here's the video where he said this:
a defense mechanism in which a person deals with emotional conflict and stressors by indulging in excessive daydreaming as a substitute for active problem solving.