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 · _intake0.918

   > one of them is the speed of light which is the so the thing that's always the same in all these different ways of thinking about the universe is the notion of time because time is

   _intake/claims-allbranch/curated-low/speed-of-light/001-one-of-them-is-the-speed-of-light-which-is-the-so-the-thing-.md

2. 02 · yt0.801

   Maxwell says there is something called the speed of light. It is the speed at which waves in the electromagnetic fields move. And naively, you look at the equations and everyone measures the same value for the speed of light. It's a constant of nature. How can it possibly be the case that everyone measures the same speed for light even if they're moving with respect to each other? So for a long time, for decades, people, physicists, bashed their heads against this problem. They came with very elaborate schemes to get rid of it. And it was Einstein, Albert Einstein, in his great paper in 1905, …

   yt/_TBNJyztai0-sean-carroll-explains-the-biggest-ideas-in-the-universe-full/transcript.txt

3. 03 · blog0.796

   If a thing-at-\(t_{1}\) were identical with a thing-at-\(t_{2}\), then they should share all their properties. What sort of identity is it, if not that? But if the properties at different times are incompatible, then a contradiction follows. Because they emphatically took the view that contradictions are never true, the great Buddhist logicians Dharmakirti (C7th CE) and his commentator Dharmottara (C8–9th CE), who had certainly read their Aristotle, deduced that identity over time does not exist (see Scherbatsky (1930) vol 2). This is the Buddhist doctrine of moments, essentially an ontology o…

   blog/plato-stanford-edu/change-and-inconsistency.md

4. 04 · yt0.792

   There's not even a preferred velocity to the universe. This was figured out by Galileo, and Newton kind of took it on board. If you started everything moving at one mile per hour to the left, the world will look exactly the same. There's no actual frame of rest that you can measure. But there is space and there is time, and everyone agrees on what those two things mean. When I say I am one mile away from a certain other point, everyone in the universe agrees you are one mile away. Yes, that is correct. When I snap my fingers and say, "At the moment I snap my fingers, a certain thing is happeni…

   yt/_TBNJyztai0-sean-carroll-explains-the-biggest-ideas-in-the-universe-full/transcript.txt

5. 05 · _intake0.792

   > don't. That's why. Why is the speed of light the same for all observers in all inertial frames? because the trace of an end cycle is an end cycle when I take so it's always the same speed one state per

   _intake/claims-allbranch/curated-low/speed-of-light/003-don-t.md

6. 06 · yt0.790

   Now, here's where your intuition starts to bleed because you've been quietly worshiping one more hidden assumption. You assume there's one universal clock, one master metronome [music] in the sky, one cosmic now that everybody shares everywhere. That's the secret religion of everyday life. Relativity murders it. Not with philosophy, [music] with measurement. Put a precise clock in a different gravitational field, [music] it ticks differently. put it in motion relative to you. It ticks differently. Time is not a single sheet laid over the universe. It's stitched into the way you move through sp…

   yt/q95GYzJlyYY-werner-heisenberg-explains-time-like-you-ve-never-seen-befor/transcript.txt

7. 07 · blog0.790

   Broad’s claim (a) was vindicated by the fact that McTaggart’s argument has received serious attention from most subsequent philosophers who pondered the metaphysics of time. Much of this debate concerns the relative relations of the two series. Is the A-series fundamental and the B-series derived from it, or vice versa; or does, perhaps, one series supervene upon the other? In the formal mode, the questions become whether the B-series may somehow be reduced to, may be defined in terms of, the A-series (or vice versa). These debates concern mainly language rather than physics and will not be co…

   blog/plato-stanford-edu/being-and-becoming-in-modern-physics.md

8. 08 · blog0.788

   In the first instance it is the measure of the motion of the outermost heaven, since this is the fastest motion in the cosmos, which accounts for the apparent diurnal rotation of the fixed stars around the Earth. This, for Fakhr al-Dīn, is the “peripatetic” account of time. In his Maṭālib he refutes it and also a variant of the view found in Abū l-Barakāt, according to which time is the measure of existence rather than motion. Fakhr al-Dīn does at least agree that time is real. To establish this he cites an old kalām idea that time offers a coordination between independent events ( Mabāḥith vo…

   blog/plato-stanford-edu/fakhr-al-din-al-razi.md

9. 09 · yt0.787

   Professor Ramamurti Shankar: So, let's begin now. First of all, I'm assuming all of you have some idea what special relativity means. There are two theories of relativity, one is the special theory and one is the general theory. The general theory is something that we won't do in any detail. Special theory is something we will do in reasonable detail. So, it's good to begin by asking some of you what is your present understanding of what the subject is all about. Yes, sir? The Yale cap, what do you think it's about? Student: It's about relative speed in two reference systems. Professor Ramamur…

   yt/pHfFSQ6pLGU-12-introduction-to-relativity/transcript.txt

10. 10 · blog0.785

    A peculiar feature of special relativity (as opposed Newtonian physics) is that each inertial frame defined by an “observer” passing through the chosen origin and moving with some constant non-zero velocity that is less than the speed of light (the only coordinate systems or frames of reference that will be considered in our discussion of the special theory) picks out a distinct set of points as simultaneous with the origin. This feature of special relativity is called the relativity of simultaneity. The relativity of simultaneity is a consequence of two startling assumptions. First, each of t…

    blog/plato-stanford-edu/being-and-becoming-in-modern-physics.md