"I just got back from New York, and I realized in New York, it's very difficult to hear a New York accent. It's almost impossible, actually - everybody seems to speak like they're from the Valley or something. When I grew up, you could tell what street in Dublin someone's from by the way they talked."

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What I realized is that if we're going to be able to have a theory about what happens in, for example, nature there has to ultimately be some rule by which nature operates. But the issue is does that rule have to correspond to something like a mathematical equation, something that we have sort of created in our human mathematics? And what I realized is that now with our understanding of computation and computer programs and so on, there is actually a much bigger universe of possible rules to describe the natural world than just the mathematical equation kinds of things.

— Stephen Wolfram