Q&A The Physics and Philosophy of Time – with Carlo Rovelli

44 thoughts on “Q&A The Physics and Philosophy of Time – with Carlo Rovelli”

1. We can have 'time' with an emergent process based on: (E=ˠM˳C²)∞ with energy ∆E equals mass ∆M linked to the Lorentz contraction ˠ of space and time. The Lorentz contraction ˠ represents the time dilation of Einstein’s Theory of Relativity. We have energy ∆E slowing the rate that time ∆t flows as a universal process of energy exchange or continuous creation. Mass will increase relative to this process with gravity being a secondary force to the electromagnetic force. The c² represents the speed of light c radiating out in a sphere 4π of EMR from its radius forming a square c² of probability. We have to square the probability of the wave-function Ψ because the area of the sphere is equal to the square of the radius of the sphere multiplied by 4π. This simple geometrical process forms the probability and uncertainty of everyday life and at the smallest scale of the process is represented mathematically by Heisenberg’s Uncertainty Principle ∆×∆pᵪ≥h/4π. In such a theory we have an emergent future unfolding photon by photon ∆E = hf with the movement of charge and flow of EM fields. This gives us a geometrical reason for positive and negative charge with a concaved inner surface for negative charge and a convexed outer surface for positive charge. The brackets in the equation (E=ˠM˳C²)∞ represent a dynamic boundary condition of an individual reference frame with an Arrow of Time or time line for each frame of reference. The infinity ∞ symbol represents an infinite number of dynamic interactive reference frames that are continuously coming in and out of existence. At the smallest scale the Planck constant ħ=h/2π is a constant of action in the dynamic geometrical process that we see and feel as the passage of time.

2. dude answer the questions, starting with the 1st one

3. If you know that Schrödinger's cat is a zombie, is the box open or closed?

4. If we in a bubble then what are the Black Holes? would it be like mini little bubbles in the bubble that with all the little bubbles (Black Holes) eventualy take over and that will make the overall bubble pop… OH NO I HAVE GONE CROSS EYED.

5. timezones!!!! how do THOSE work?

6. but what about the thing from stephan hawkings books, simultaneousness. where it is describing how you can see the "past" and the "future" by either moving very very fast or "looking" very very far. (because if u dont move through space, you move with c in time in the 4 dimensional space time, and you perceive that spacetime in a 90° degree angle from your movement direction). that should not be a thing if quantum gravity is true, right?
   in quantum mechanics/relativity this is certainly true.

7. The fact that this talk transcends the boundaries of physics and metaphysics is really unfortunate. Because the audience isnt well-versed enough in either discipline to be able to parse between which aspects of the speaker's talk fall in which category. Thus opening a vast corridor for the emergence of pseudoscientific interpretations.

8. When he says "Let me take this question seriously" to that first woman I almost pissed my pants………how is it that when I call New York from Rome they're not in the future………………………lololololololol………….hahahahahahaha!

9. The scary thing is the woman who asked the first question was dead serious

10. As a green asexual flamingo, I am insulted by your inference of my color and gender. /endsarcasm

11. Time does not exist. It is a human construct to measure relative movement between two or more objects. Save an hour and a half and do something else with "your" time.

12. Spacetime is a standing wave comprised of nested spirals passing through itself in both/many directions. The more of a complete coil/cycle/interaction you can perceive together, the more it manifests superposition and simultaneity. This is how it seems so obvious in short small interactions like particles, but it can still be found in longer/wider oscillations that you might otherwise call "history" or "expectation." When the standing wavelength is small in one dimension but long in another, you might call it "spooky action at a distance" or "strange intuition."

    You have to use a waveform-based math rather than a linear one, then it solves out. You just may not like the answer at first.

13. What is with these questions

14. Star date is not only a measurement of time, but also a reference point? Is time based on movement, heat, or energy; if an object is at absolute zero is it "frozen in time", or doesn't experience time because "it" the particles that make it up, are not covering distance within space/time? The big bang, the first energy, the first movement,… started time?

15. Very disappointing Q&A session. Has anyone in the audience grasped the time illusion of continuously future-forecasting brains which visit a block universe along a necessarily statistically oriented path?
    Consciousness belongs to any continuously future-forecasting system, independently of its material support

16. You can't ever detect half a Planck length because there's no equivalent constant naturally derived from the Observable universe 's mathematical-modulated integration. Ie what we can see is integrated.., so it "maintains " it's embodiment of integrity, something like the leaves on a tree have individual and collective integrity within specific limits, it's a mathematical property of inclusion and exclusion of primes and cofactors, from which the cause-effect, (total internal reflection-embodiment), is a connected individual and collective conglomeration of phase-states. (Humans are analogue, made of time-duration quanta, and use analogies to communicate and infer what can be from what is, but if the Universe is a single connection, these analogous approximations can never be "true" reality)

    The Planck length is an inferred value so any amount of division is possible in the quantizing function of temporal connection-continuity, but by self definition, the duration is too short to relate to the existing resonant general probability of phase states.

    A thought experiment might be to imagine compressing a simple gas like Hydrogen, the faster, (= higher frequency), you compress the higher the radiation (by the Exclusion Principle) frequency will be, so if you use a supercollider like the LHC, it is a tool limited by the elements and available energies of its construction, and to get at the Planck length frequencies requires a collider as big as the galaxy(?).
    The cause-effect resonance of the Planck length comes directly from quantum effects of superimposed timing that is, ..the Universe.

    The Present, Now, is the cause-effect of reflection in the limit of connection of QM-Time "suspended" in nothing, eternally, which is an alternate self-definition of spaced timing, potential and transitional dimensions measured as resonance.

    All possible phase states of time-duration resonance are occupied.., by the cause-effect observed as the Exclusion Principle, =>Quantization of Eternity-Now, "measured" out against itself in self-definition. A beginning is also an ending, a cause-effect recirculating Origin like the starting-finishing line of a circular racetrack, that measures time duration against potential possibly of all rates and durations, in that particular dimensional context.

17. I doubt any of the people asking questions actually truly understood a single thing he was trying to convey to them. I mean, those questions.. just.. what?

18. Some people ask so stupid things that Carlo cant believe it, he saves the day answering a re imagined question

19. I never got that "it's the same as asking what's north of north pole" analogy… because if you stood on the north pole, "north" would be up – and in order to do that you have to go one dimension up, where the terms north and south become meaningless. Interesting approach to time and quantum gravity though. Anxious to hear what Sean Carroll's group comes up with 🙂

20. Nanoseconds or light years. No matter where you go, there you are. 📸⏳🕰⏲⏱⏰⌚🌍🌎🌏🕐🕢🕘🕥🍺

21. I’m inside a black hole. What does time feel like, and could I calculate how long before I was no longer in a black hole?

22. multiple "big bangs" would suggest a lack of linear time in the place of what we call 'entropy', or that at the most the human notion of Time as a real 'thing' is simply the measurement (or interaction) we human brains affect upon our surroundings to make our version of "sense" out of our very REAL multi-dimensional existence. there was a good book called Flatland and then a companion book called Sphereland, where the author (making great use of satire) helped the reader (a being mostly perceiving 3 dimensions) understand the ("limited") perception a being would have in a 1d space and a 2d space. the companion book took this further and helped the reader try to understand how a 2d being could POSSIBLY fathom the 3d world. the real goal of both books combined was to get the reader to imagine our perception of hypothetical 4th dimension. i think science is on the threshold of doing just that. the way we interact with our "reality" may very well change soon in ways most of us could never predict.

23. also, when you told that kind lady how to deal with the emotions of Time…. ACCEPT IMPERMANENCE… GOLD!

24. if time can be mathmaticaly expressed as a function of mass as you oberve in a sandglass flow of the grains following gravity then it can also be understood as something multidimensional as masses and gravity is spread through out the universe in different positons in space , thus time

25. Poor Carlo, I think he must have felt his talk was mostly unappreciated after a Q&A like this..

26. how is it we assign an age to the universe, if time is not constant?

27. Is he Joe Pesci's cousin?

28. I can imagine how embarrassing it would have been answering those poor questions, especially without any use of equations or complex explanations.

29. Still a bit confused about going into space & friend is 100 years younger – is it time that has passed or just the friend that decayed slower? The rate of decay – entropy – is what we are calling time but no such thing actually exists?

30. If we loose our Memory and ability to imagine the future, then will the concept of Time become irrelevant? Is time our own making?
    Can we fathom time with our intellectual mind?

31. Time is the sequel of all events

32. He's pushing on emotional part, but what we call "life" is not something just "emotional", but I accept that quantum physicists disregard such a neglibile fluctuation as life. On his scale time may not exist, but that does not change a thing.

33. There are more Planck times in one second than there are seconds since the big bang (13.7 billion years). That's such a beautiful mindfuck!

34. 1. i thought i was struggling to grasp a few bits here and there, but now hearing the audiences questions, wow, its as if they werent listening at all.
    2. cant all the questions be answered by the same idea (which somehow Carlo avoided stating): causality and entropy still exists to drive a process of change (which generates in our mind a distinction between a thing that was and a thing that now is), but these fixed perceptions of time are an illusion. in this sense, time is a human construction based on experiencing entropy. why do we all have this illusion? because its more evolutionarily advantageous to interpret a "flat" time that can easily predict immediate threats than it is to pontificate about the universal meaning of time.

35. i like how he generously assumes that the first question wasn't that stupid as it actually was.

36. The second question shows how people still stick very strongly to the "sensuous" conditions of experience. Time in its most ancient definition is the observation of change, even if this changes are so small that they are imperceptible to human eye and everything looks like it hasn't changed. All the history of science, since the first philosophers up to this day, have proven that, although very practical and efficient in our everyday lives, mere observation does not provide a reliable scientific explanation of any phenomenon. As Hegel said, if sensuous experience we're enough to explain anything at all, science would be useless and never have been invented.

37. Time looks to be one dimensional, for me as a human being, though it might not be.
    If time having two or more dimension could explain to me some of the weirder stuff that happens,

38. Wonderful talk and i enjoyed the Q&A to. I could listen to mr. Rovelli for hours. Please invite him back soon RI! Thanks.

39. What if there are several alien civilizations waiting for us to join them in the timeframe near to a black hole? A conglomeration over billions of years, extinct in their native galaxies respectively even maybe but brought together by gravity. Did anyone entertain that idea yet?

40. Kooooolll

41. this is old school BS. Time is a real physical process of light and material

42. half a Planck length or any quantum can be expressed in the unit circle as part of the underlying wave mechanics, it's not right to say it doesn't exist, it just doesn't exist in our experience of space and time

43. Time's illusion's our wrinkled face…

44. I love this guy, trying to answer questions in both conventional and quantum thinking, woth such easeness and interest.

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