Corpus evidence — top 10 passages

Most-relevant passages from the entire indexed corpus (67,286 paragraph chunks across YouTube transcripts, PubMed, arXiv, archive.org, Stanford Encyclopedia of Philosophy, OpenAlex, and more) ranked by semantic similarity (bge-small-en-v1.5).

1. 01 · yt0.817

   With certainty. Now, this is a criterion, I don't know what you call it, a a dictum I call it, by Einstein. Einstein was worried about this concept of quantum reality, I think. And he and lots of other people were worried about this. To what extent is the quantum state real? Is it a real thing? Or is it just a figment of imagination or useful tool of a our calculations? Is it real? Not that it's real in the sense of real numbers, cuz it's not. It's complex numbers, which is a nice sort of um iron irony. But take the spin case, that's a good one. Which way is it spinning? Like you know, not sur…

   yt/vC4HNcqTQXk-roger-penrose-on-mind-consciousness-closer-to-truth-chats/transcript.txt

2. 02 · yt0.812

   Now the problem is I mean one way to put the problem conceptually is that quantum mechanics is often presented as if measurement was this very important almost semi-agical moment in physical interactions where something special happens. Um, but then we also tell students things like this. Well, a screen, what does it do? It measures position. Yeah. Right before that dot appeared on the screen, did the particle have a position? No, didn't have one. Right? It just had none. Right? But if it didn't have one, then you didn't measure its position. Right? Then that interaction created the position. …

   yt/VbXEc9vpeIM-what-we-ve-gotten-wrong-about-quantum-physics-world-science-/transcript.txt

3. 03 · pubmed0.807

   The word 'uncertainty', in the context of quantum mechanics, usually evokes an impression of an essential unknowability of what might actually be going on at the quantum level of activity, as is made explicit in Heisenberg's uncertainty principle, and in the fact that the theory normally provides only probabilities for the results of quantum measurement. These issues limit our ultimate understanding of the behaviour of things, if we take quantum mechanics to represent an absolute truth. But they do not cause us to put that very 'truth' into question. This article addresses the issue of quantum…

   pubmed/PMID-22042902-uncertainty-in-quantum-mechanics-faith-or-fantasy/info.md

4. 04 · yt0.803

   The measured particle is in a given s- place and time. And so, this is something that puzzled the physicists. How is it possible for an act of measurement to collapse this probability wave and give a definite position to particles which have no definite positions before the act of measurement. And believe it or not physicists have been kicking this so-called measurement problem around for a good 100 years, almost. More like 90. For about 90 years, they've been speculating on this with no actual uh solution in sight. The weirdest ideas are presented by them uh in order to resolve this conundrum…

   yt/8NWHGX53agc-dr-wolfgang-smith-renowned-physicist-on-vertical-causation-i/transcript.txt

5. 05 · yt0.803

   And it's not only the subatomic world, by the way, this is now, maybe you could have argued 50 years ago that this is just our philosophy, it doesn't really matter, whatever, but now we have an increasing number of quantum technologies that are really based on this behavior, the quantum computers being a good example. And so you see that this is not just something that you can say, well, we don't need to think about it really because it's in the world of atoms and it's all a bit whatever, and we, but, and we can just do some calculations. Because we are using that behavior now in technologies …

   yt/BHEhxPuMmQI-physicist-brian-cox-explains-quantum-physics-in-22-minutes/transcript.txt

6. 06 · yt0.802

   The notion of quantum reality actually comes from Einstein in a certain sense. He talked about the quantum state. He said: Is the quantum state real or not? And a good example is the spin of a split in a half particle, take an electron Now, the spin of an electron, the different possible spin states are spin right handed about all possible directions so I can move my thumb about the axis and it spins right handed about that axis. Now all those different possible states, those are the possible spin states of an electron. Now what you can't do is ask the electron: What’s your spin state? Or you …

   yt/0nOtLj8UYCw-quantum-consciousness-debate-does-the-wave-function-actually/transcript.txt

7. 07 · yt0.796

   And that is a perfectly legitimate description of the state of the configuration of this thing. Just to give you a sense of a real physical object that would behave that way. Particles like electrons, for example, have a property called "spin", which can be up or down, it's like heads and tails. But that's the key thing that objects like "electrons" can not only have definite values of some property, some thing that you can measure, but they can be in a mixture of those things. And it's not a probability theory in the sense that we would usually think of probability theories. So usually we'd s…

   yt/BHEhxPuMmQI-physicist-brian-cox-explains-quantum-physics-in-22-minutes/transcript.txt

8. 08 · yt0.795

   So, for about ever since quantum mechanics uh was conceived, the physicists have been puzzled by the fact that in the act of measuring a quantum object, uh a quantum variable, um the mathematical structure, say as a wave function, collapses in an instant and yields a number, which is not there to begin with. It's not there before you did do the measurement. And this is obviously very mystifying. And physicists, as I say, have been uh trying for close to a century to resolve that puzzle. And uh it it seems to me, after more than a hundred years of failure, that they really can't do it on the ba…

   yt/QvLSkzes_II-convergence-to-neoplatonism-w-wolfgang-smith/transcript.txt

9. 09 · yt0.795

   Everybody thinks one thing you can cleanly use quantum mechanics to do is predict if I shoot electrons one at a time as it were, whatever that means. Yeah. through a screen with two slits, we know an interference pattern will form. You would think the algorithm we have can predict easily the exact structure of that interference pattern. If I collect more and more and more data, I can get to more precision. How many particles land where? Yes. Nobody knows how to do that with precision. Why? When you say with precision, is that the key? Well, what I mean is this. What? What what's going to come …

   yt/VbXEc9vpeIM-what-we-ve-gotten-wrong-about-quantum-physics-world-science-/transcript.txt

10. 10 · yt0.794

    These can be in what's called an "entangled state." So then you have a much richer structure of this physical system. So an example of an entangled state, a very famous thing called a "Bell state", would be where you set these things up. So the system of these two qubits, let's say they're up and down these spins, right? So I can have the state up, down plus down, up, by that a complete description of this state, up, down, plus down, up. What does that mean? So let's say I take one of these electrons and I separate them. It's a very famous paper written by Einstein Podolsky and Rosen that firs…

    yt/BHEhxPuMmQI-physicist-brian-cox-explains-quantum-physics-in-22-minutes/transcript.txt