So Einstein was wrong when he said, “God does not play dice.” Consideration of black holes suggests, not only that God does play dice, but that he sometimes confuses us by throwing them where they can’t be seen.
The Nature of Space and Time (1996) by Stephen Hawking and Roger Penrose
A demonstration of moiré patterns produced by overlaying and rotating two identical repeating patterns. As the two patterns overlap and rotate they interfere with each other to produce tertiary patterns.
My colleague Roger Penrose once said that there are at least three worlds and three mysteries. One is the physical world. You know, this is the world where we exist. There are chairs, tables, there are stars, there are galaxies, and so on. Then there is a second world, which is the world of our consciousness, if you like. You know, a mental world, a world where — this is where we love, where we hate, you know, and so on. All our thoughts are there and so on. And then there is the third world, which is this world of mathematical forms. This is the world where all of mathematics is there. You know, the theorem of Pythagoras and so on and so forth, all this imaginary numbers and all that. So these are the three worlds. And now come these three mysteries. One mystery is that somehow, out of the physical world, our world of consciousness has emerged.
Meeting in Andromeda: How Time Dilation Can Get Weird
The effects of time dilation that we experience are so minuscule as to usually escape notice; however, the phenomenon compounds with distance and motion. Radio host John Hockenberry and physicist Roger Penrose walk through an illustrative example of long-distance time dilation in this selection from the 2009 World Science Festival program “Time Since Einstein.”
Midnight. My 8-year-old wants not a conversation, but an argument. He picks the silliest position to defend. He tries to persuade me that the moon is not actually MADE of cheese, but rather covered in a thin layer of it. To defend his position, he cites “Hey Diddle Diddle, the Cat and the Fiddle”, T. Preston (1569) and “The Road to Reality”, R. Penrose (2005).
I defeat his logical fallacies easily, but he is wearing my reading glasses, and so gains +14 credibility, and I must retire in disgrace.