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"According to the standard model billions of years ago some little quantum fluctuation, perhaps a slightly lower density of matter, maybe right where we're sitting right now, caused our galaxy to start collapsing around here."
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"I am now seventy, rather glad, really, that I won't live to see the horrors to come in the 21st century."
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"Students now arrive at the university ignorant and cynical about our political heritage, lacking the wherewithal to be either inspired by it or seriously critical of it."

"I take responsibility for myself and what I do now."

"I was probably just trying to be Dennis Miller, but without the vocabulary to actually be Dennis Miller. I guess I was just less interesting than I am now, if I am interesting at all."
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"What's happened with society is that we have created these devices, computers, which already can register and process huge amounts of information, which is a significant fraction of the amount of information that human beings themselves, as a species, can process."

"Science consists exactly of those forms of knowledge that can be verified and duplicated by anybody."

"In this metaphor we actually have a picture of the computational universe, a metaphor which I hope to make scientifically precise as part of a research program."

"Computers are famous for being able to do complicated things starting from simple programs."

"Similarly, another famous little quantum fluctuation that programs you is the exact configuration of your DNA."

"All physical systems can be thought of as registering and processing information, and how one wishes to define computation will determine your view of what computation consists of."

"I have not proved that the universe is, in fact, a digital computer and that it's capable of performing universal computation, but it's plausible that it is."

"Of course, not everybody's willing to go out and do the experiments, but for the people who are willing to go out and do that, - if the experiments don't work, then it means it's not science."

"One of the things that I've been doing recently in my scientific research is to ask this question: Is the universe actually capable of performing things like digital computations?"

"Indeed, as the above calculation indicates, to take full advantage of the memory space available, the ultimate laptop must turn all its matter into energy."
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