To breathe in from the air is "inspiration' and the opening of the mind to things unknown, it is at this moment, when the "demon" "demonstrates". Fueled by desire, and validated by capacity and integrity. The valve opens.

Imagination isn't more important than intelligene

@@goyonman9655 Only if the desire is to remain static. Imagination makes expansion possible. A simple observation of this, Mendeleev got the periodic table in a dream , not in a lab.

Imagine, all in all it's just Einstein's false imagination that costed humanity priceless and precious "time" of more than a century. Imagine, there is no future, no time no spacetime! I have imagined already and GR married with QM "in no time"... just started to move and count timelesssly, that's all it took and now I believe to possess all the blueprints. If interested, Let's win a Nobel Prize together :)

@@mustafakilavuzoglu Then how do you explain general relativity coming in handy when it comes to the working of satellites?

Which ones? I am not denying he did but just can't remember any. However, Newton certainly did use though experiment. He used the Kepler law (consistent with his gravitation theory) to calculate that a satellite at sea level would have a roughly 90 minute period and this requires a force which accelerates its with 9,8 m/s^2 (in modern units) towards the center of the Earth, exactly the gravitational acceleration which Hooke had just measured with pendulums. This showed to him that the gravity we feel and the force which rules the movement of planets are really the same phenomenon.

In a sense, a thought experiment is nothing other than normal reasoning. The distinguishing characteristic seems to be the use of mental imagery and spatial reasoning

@@arctic_haze One example of Galileo's though experiments would be two objects of different masses connected to each other, and falling together. This was to address the question of if objects with more mass fall faster, or if all objects have the same acceleration due to gravity.

@@CulusMagnus Not mass but weight. There was no Newton, yet. Two objects with the same weight will fall to the ground at the same speed according to Aristotle. So if attach those two objects together as one then that would be heavier than those two and should fall faster, again according to Aristotle. He thought that didn't make no sense. The only way it'd make sense is when every object falls to the ground at the same speed, light or heavier. And he experimented it to prove his thoughts.

I agree - and Galileo in particular deserves credit for using thought experiments as a very effective _pedagogical_ tool in his Dialogo. The Wikipedia page on "Thought experiment" has a nice quote from Galileo's "Discorsi e dimostrazioni matematiche" that shows how a thought experiment is used to deliberately construct a paradox.

THE CLEAR UNDERSTANDING OF THE MOTION OF WHAT IS THE MOON AND OF FALLING OBJECTS (AND THE FALLING MAN), AS E=MC2 IS CLEARLY PROVEN TO BE F=MA: Think about the BALANCE of BODILY/VISUAL EXPERIENCE. Consider what is the FULL DISTANCE in/of SPACE AND what is the MIDDLE DISTANCE in/of SPACE IN BALANCE. So, consider the man who IS standing on what is the Earth/ground. Touch AND feeling BLEND, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE. The EARTH/ground CLEARLY proves ON BALANCE that E=mc2 IS F=ma. Time DILATION ULTIMATELY proves ON BALANCE that ELECTROMAGNETISM/energy is gravity, as E=mc2 IS F=ma. OVERLAY what is THE EYE in BALANCED RELATION to/WITH what is THE EARTH. Notice the black space of THE EYE. The stars AND PLANETS are POINTS in the night sky. THE DOME of a person's EYE is ALSO VISIBLE. Now, carefully consider what is the semi-spherical, translucent, QUANTUM GRAVITATIONAL, AND BLUE SKY. Gravity IS ELECTROMAGNETISM/energy, as E=mc2 IS F=ma. SO, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites. This NECESSARILY represents, INVOLVES, AND, DESCRIBES what is possible/potential AND actual IN BALANCE. Accordingly, TIME is NECESSARILY possible/potential AND actual IN BALANCE; as E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. The Sun is E=mc2 AND F=ma. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. So, E=mc2 AS F=ma clearly requires and involves invisible AND VISIBLE SPACE in fundamental equilibrium AND BALANCE; as ELECTROMAGNETISM/ENERGY IS GRAVITY. (The EARTH is ALSO BLUE, as it CLEARLY proves ON BALANCE that E=mc2 is F=ma.) ACCORDINGLY, the MIDDLE DISTANCE in/of SPACE AND the FULL DISTANCE in/of SPACE are NECESSARILY LINKED and BALANCED; as E=mc2 IS F=ma; as ELECTROMAGNETISM/energy is gravity. Great. Therefore, INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience; as E=mc2 IS F=ma; as ELECTROMAGNETISM/ENERGY IS GRAVITY. THE EYE is the body ON BALANCE, as E=mc2 IS F=ma. INDEED, the balance of being AND EXPERIENCE is essential. (BALANCE and completeness go hand in hand.) SO, objects (including what is the falling man) fall at the SAME RATE (neglecting air resistance, of course); as ELECTROMAGNETISM/energy is gravity; as E=mc2 IS F=ma. Indeed, gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; as ELECTROMAGNETISM/energy is gravity. Great. Therefore, the rotation of WHAT IS THE MOON necessarily matches it's revolution; as E=mc2 IS F=ma. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/energy is gravity. The Earth AND the Sun are linked AND BALANCED opposites, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Great. Therefore, the rotation of WHAT IS THE MOON NECESSARILY matches it's revolution. Great. E=mc2 IS CLEARLY proven to be F=ma !!!! The stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. GREAT !!!!! The EARTH and the Sun constitute and comprise the MIDDLE AND THE FULL DISTANCE in/of SPACE (IN BALANCE) in full and BALANCED compliance and conformity with the CLEAR and universal fact that E=mc2 IS F=ma, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Great !!!!!! Hence, it is CLEARLY proven, in fact, that the rotation of WHAT IS THE MOON NECESSARILY matches it's revolution. Great. Obviously, what is THE MOON is subject to and constitutive of both E=mc2 AND F=ma. E=mc2 IS CLEARLY proven to be F=ma. "Mass"/energy involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. The following constitutes even further proof of the fact that ELECTROMAGNETISM/energy is gravity. Very importantly, in dream experience, BODILY/VISUAL EXPERIENCE is invisible AND VISIBLE IN BALANCE. Dream experience is/involves true/real QUANTUM GRAVITY, as ELECTROMAGNETISM/energy is gravity; as E=mc2 IS F=ma. By Frank DiMeglio

you know what , what ever you are saying is also a thought experiment MARY'S thought experiment

yea something about the formula was so spot on ... had the same

AHAH, I didn't catch it, you made me rewatch it and laugh hard.

Kudos to the video editor it's not his first demonstration of greatness.

_Necessity is the Mother of Invention but Curiosity is the Father_

+Grok Effer That is why I HATE all the assholes who NEVER did the hard discipline of REAL ABSTRACT MATHEMATICS bashing imagination, creativity, mathematical modeling, computer simulation & computation. They FALSELY delude themselves into thinking they are being so "practical" by YAMMERING on about "physical experiments only", TOO STUPID to comprehend that RAW DATA ITSELF DOES NOT PROVE ANYTHING: that PROOF & PROVING THINGS & COMING TO CONCLUSIONS is an ABSTRACT MENTAL PROCESS, NOT A PHYSICAL ONE, EVEN IF THE ABSTRACT PROCESS MUST REFERENCE PHYSICAL DATA.

@@theultimatereductionist7592 Oddly, I understood this, and I think I agree. Math was always my least proficient subject in school, but I've always found this sort of thing interesting.

@Ana Blaque HaHa !! I say silly things sometimes to cover the fact that I can't really contribute anything else to the conversation.

@lol haha she really is fashionable tbh I look up to older, well dressed women who have something to say

Irgendwie "organisch"... wie der Einsteinturm in Potsdam. (Zitat: Einstein)

@@oceanlawnlove8109 She's younger than me, and I still look up to her. 🤣

I wonder if she makes them herself, they are always interesting and quirky.

And the sepia coloured tone matches the background so nicely!

Wait what??

Thanks for the info! I’ve been looking for this!

Wait what? You were on SpaceTime? My 2 favorite physicists!!

Happy you like it!

I am not going to reply to this comment and I strongly suggest no one else reply to this either, otherwise this commenter will deflect the whole section. It was my mistake to post the first reply (which I have deleted) and I apologize to the group for doing so.

@@SabineHossenfelder Either the camera was slightly tilted, or you were. Are you well? Great video as always. I notice many commenters have missed a key point about Einstein's thought experiments: that they explored the boundaries. Others did grasp the concept. There is a fine line between modern physics and classical philosophy.

She is, in a way!

@Asa And this was something Einstein himself seemed to realise. I recently read a talk he had given where he stressed the importance of understanding *how* the great thinkers of the past thought. He seemed to consider it more important than merely learning about what they discovered. I think it's evident he was not completely wrong if we look at theoretical physics today. I can't help but draw comparisons to historical views where it took a change in perspective to progress; these came after many years of physicists, incorrectly, invoking all kinds of phenomena that *must* exist, because the data /model shows it. In conversation Einstein had said that (my words, not his) essentially he felt the direction quantum physicists were heading was going to leave them stuck spinning their wheels as they needed to change how they were looking at what they were discovering. While he felt that ultimately his view of how the universe worked would be required in order to truly understand quantum physics, he acknowledged he didn't think he was approaching it in the right way as he worked to reconcile things. The more I learn about Einstein's way of looking at things, the more I am convinced he was not wrong in his view on the importance of understanding how to look at things matters more than what we think we know about things.

Good point. I think that the important factor is that the gedanken must be confirmed by experiment; or perhaps more accurately, experiment must not falsify the gedanken.

I think they key is measurement. Sometimes new measurement is a more accurate (higher resolution) measurement of a known phenomenon. Sometimes new measurement describes a new phenomenon. I think Einstien explored both types of measurement.

Good Point ! We should not overrate the importance of thought experiments ; Yes, they can be very useful to extend human theories and detect logical inconsistencies. However, nobody (not even Einstein) can derive Universal laws or truths from them, because that’s equivalent to implicitly saying that our human mind is so all-knowing that it can replace Nature itself as a laboratory for conducting experiments. Point and case: Einstein correctly noticed a contradiction with his EPR paradox leading to the concept of time instant quantum entanglement. However, in his human hubris, he crossed the line when he concluded on this basis that QP must be wrong. He never considered that his spacetime physics could be incomplete in stead. In the early 1970's Bell’s inequality theorem tests PROVED quantum entanglement is actually very real and that Einstein's critique on QP was WRONG. This should have provided a stern warning to all modern physicists that you cannot deduct 'universal truths' from mere 'human thought experiments'. But rather than admitting INSTANT influence is indeed possible, posing a problem for C (or any other spacetime speed for that matter), our top physicists persist that 'all is well' by adopting the most flimsy excuse stating: ‘…Yess,..well,..OK, …, so entangled particles DO influence each other instantly, but we consider this influence as being non-information, therefore it is nothing, therefor it is still true that ‘nothing exceeds C….’ . Tsss, that’s playing with words and semantics like we were lawyers. What a bad losers we are….If anything, the Gedanken Experiment proves how fallible we humans are, how reluctant we ar to let go of our assumptions and pre-conditions and how incomplete spacetime physics itself is....Are we really going to waste another 100 years sticking to our failures?

@@baruchben-david4196 ON THE ABSOLUTE PHYSICAL EQUIVALENCY AND BALANCING OF E=MC2 AND F=MA: It is a very great truth in physics that the ability of thought to DESCRIBE OR reconfigure sensory experience is ULTIMATELY dependent upon the extent to which THOUGHT IS SIMILAR TO sensory experience, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (THOUGHTS ARE INVISIBLE.) INDEED, E=mc2 IS DIRECTLY and fundamentally derived from F=ma; AS time dilation proves that electromagnetism/ENERGY IS GRAVITY. Therefore, ultimately and truly, time is possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. In fact, INSTANTANEITY is FUNDAMENTAL to the FULL and proper understanding of physics/physical experience; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. THE stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 IS F=ma. GREAT !!! BALANCE AND completeness go hand in hand. It all CLEARLY makes perfect sense. (Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black.) The INTEGRATED EXTENSIVENESS of THOUGHT (AND description) is improved in the truly superior mind. Gravity IS ELECTROMAGNETISM/ENERGY. By Frank DiMeglio

Maxwell's little demon also needed to consume energy in order to man the gate - whether this be in the form of Big Macs or Information Burgers.

@Bertrand de Born I fully expect you to be proven right...eventually. But like Newton, he has been more right than wrong for a long time now. But feel free to publish "de Born's Theory of Everything". We wait with bated breath...

@Bertrand de Born [citation needed]

@Bertrand de Born And that constitutes "so much is wrong waht he said"?

@Bertrand de Born So he was sometimes wrong about something. Which part of Special or General relativity, or his other scientific accomplishments it invalidates?

@Bertrand de Born Last time I checked, currently accepted formulas for SR time dilation do indeed have c+v and c-v terms. So what's your point? Many SR formulas include 1/sqrt(1-v^2/c^2) term, which you can rewrite as c/sqrt((c+v)(c-v))

Also Galileo: you can't tell whether is ship is moving or docked by doing experiments in an enclosed cabin. That is the essence of "Relativity"!

Thanks for the feedback! Happy you find my videos useful!

If its possible of course . These lecture type videos are great , thank you again !

THE ULTIMATE MATHEMATICAL UNIFICATION OF PHYSICS/PHYSICAL EXPERIENCE IS CLEARLY PROVEN: The moon is NECESSARILY moving AND not moving IN BALANCE (WITH PERPETUAL MOTION), AS it's rotation matches it's revolution; AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT !!! INSTANTANEITY is FUNDAMENTAL to the FULL and proper understanding of physics/physical experience, AS time DILATION proves that electromagnetism/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. This NECESSARILY represents, INVOLVES, AND describes what is possible/potential AND actual IN BALANCE. Indeed, ultimately and truly, time is possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. BALANCE AND completeness go hand in hand. The stars AND PLANETS are POINTS in the night sky. The ULTIMATE MATHEMATICAL UNIFICATION (AND UNDERSTANDING) of physics/physical experience combines, BALANCES, AND includes opposites. NOW, THOUGHTS ARE INVISIBLE. Indeed, the INTEGRATED EXTENSIVENESS of thought (AND UNDERSTANDING) is improved in the superior mind. E=mc2 IS F=ma. "Mass"/ENERGY IS GRAVITY. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. GREAT !!! Gravity IS ELECTROMAGNETISM/ENERGY. THEREFORE, the rotation of what is THE MOON NECESSARILY matches it's revolution; AND objects fall at the SAME RATE (neglecting air resistance), of course. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE.) E=mc2 IS F=ma. (Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black.) "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 IS F=ma. Very importantly, carefully consider what is THE MOON. The Moon is a FUNDAMENTALLY BALANCED electromagnetic/gravitational manifestation that must and does reflect the fact that E=mc2 IS F=ma. Overlay what is THE EYE in BALANCED relation to/WITH what is the Earth AND the Moon. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. ACCORDINGLY, the rotation of what is THE MOON NECESSARILY matches it's revolution; AND THE MOON is then truly understood as being a "dead" or static manifestation or form of what is, in fact, fundamentally BALANCED ELECTROMAGNETIC/gravitational force/ENERGY; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. Hence, the appearance of what is THE MOON is successfully explained in BALANCED RELATION to/WITH what are THE EARTH AND THE SUN. It ALL makes perfect sense. Gravity IS ELECTROMAGNETISM/ENERGY. Therefore, the tides are NECESSARILY the proven form or INTERACTION of what is/involves BALANCED electromagnetic/gravitational force/ENERGY; AS E=mc2 IS F=ma. ELECTROMAGNETISM/ENERGY IS GRAVITY. AGAIN, BALANCE AND completeness go hand in hand. GREAT !!! By Frank DiMeglio

Ask Hossenfelder about Frank DiMeglio. She is deceitfully and deliberately evading and ignoring the fundamentals of physics. I have proven that.