Can Consciousness Change Physics?

[fizipcfx]

This is perfect, I had so many convos with people who are considering themselves experts at quantum mechanics just by googling 1-2 terms 😑

[kazzzzzzzzzz]

I love billy and his goofy ass discord messages sm

[Lyxtwa]

So if I'm interpreting the idea correctly, the act of observation of a quantum system requires a photon to interact with the quantum system. This photon changes the system to a state that wasn't present before the photon interaction. Also the only way that we could obtain pristine, completely precise measurements of quantum systems in position and momentum is if there was a way to obtain that information without subjecting the quantum system to a photon-interaction or field interaction.

[viniciusbessa]

This channel is one of the best things i found in these days. Awesome job! 🐦

[PykingGames]

It was very informative, I want more episodes on quantum mechanics

[Pengochan]

This video is more about the uncertaincy principle, and the technicalities of how it acts out in e.g. an experiment.
"Collapse of wave functions" is more about superposition of states, maybe description of states in different base systems (e.g. a spin in x, y, or z -direction), and also the "interpretations of quantum mechanics" like "Copenhagen", "Many Worlds" (where you don't need a "collapse of the wave function") etc., because the "collapse of the wave function" only makes sense in some "interpretations".

One implication one could discuss is how and if the concept of locality is affected (the "spooky action at a distance" business).

Then there is also quantum information theory, which provides new tools (in physics "new" meaning from the last few decades) to look at things and describe quantum systems and their evolution.

[Chchchchchchanges]

Your description of the Heisenberg uncertainty principle is incorrect, but it is understandable given that it is often taught within the context of discussing measurement in quantum mechanics. 

The uncertainty principle absolutely does not depend on measurement like you described and is something which is universal to all wave phenomena. Any wave can be expressed as the sum of sinusoidal waves of different frequencies. In real space, the value of the wave varies with position according to its frequency, which is given by momentum. A single sinusoidal wave with one frequency (i.e. momentum) extends over an infinite length in space and, thus, has no defined position. The converse is true. Any finite wave packet will be limited in both position and momentum and the minimum spread of this distribution is given by the Heisenberg uncertainty principle. You see this sort of behaviour with literally every kind of wave (water, sound, etc...) and it naturally follows from the properties of the Fourier transform, which is widely used in quantum mechanics but not unique to it. To get technical, an uncertainty principle exists for every pair of conjugate variables (e.g. space-momentum, time-frequency, etc...) and, in quantum mechanics, these relationships are established by the commutators between operators.

The measurement effect which you described is not directly related to the Heisenberg uncertainty principle. Of course, all physical particles exhibit this behaviour, obey the Heisenberg uncertainty principle, and this effect will manifest in every measurement, but the measurement effect is distinct from the uncertainty principle. Your explanation does not preclude that position and momentum could both be simultaneously and precisely defined, whereas the uncertainty principle actually states that there can be no particle (or wave of any sort) with both a definite momentum and position. Such a wave cannot possibly exist.

[ryuuichi]

quantum chair: hexane molecule in the chair state

[CherryDevelopment]

I know nothing about out quantum mechanics or theory or even where I am….

But somehow watching this video I both learned a vast amount of things and came away with an expanded mindset on how the things around me interact with my environment.

Thank you? For the video I didn’t know I needed.

[amineelamri]

Great content SIr ! please do more Quantum mechanics videos

[zetenybacso]

I like the new format you are experimenting with. Keep up with the good work!

[tonytrigger]

Wouldn't the wave function collapse even if there was no observer to see the photon bounce off the quantum chair? What if it hit an electron?

[adityaprasad]

Great video, but it's missing something huge. As you well know, most interpretations don't invoke a non-unitary collapse. Instead, every physical interaction causes entanglement. And decoherence is just a fancy word for "ridiculously complicated entanglement." It is fundamentally unitary.

In principle, anything _outside_ an entangled system can un-entangle it, or demonstrate interference on its branches (though in practice, decoherence prevents this). But once "inside" the entanglement, all bets are off even in principle (for you). Therefore, when _you_ entangle with any system (such as Schrodinger's infamous Cat) is when it first attains a definite value in "your world" (aka "the" world, for you).

If you try to pin down precisely what is meant by "you" here, you will find yourself narrowing down on "your consciousness." But regardless of its definition, _you_ are indeed the point at which quantum events attain definite values in "your world."

[ottclass]

noice content bro!!, will enjoy such content more

[prestonwhite]

Isn't just egotistical to insinuate that we mere humans are responsible of wave collapsing simply by "observing"? That's what I hate the most from science news for the general as it implies that 'only' consciousness (no one can define it well what is consciousness, just like no one knows what energy actually is, what if....consciousness is energy lol) effects the wave function when observing, why would people, specifically in the scientific community, believe that? That is soo self-absorbing and close minded and far from accurate, whenever you analyze a situation that involves a human, it's not always about the human!

[gryphonschnitzel]

Whats the epic chorus music youre using so often?

[Heyitsthatgtim]

The understanding of quantum mechanics will propel the advancement of technology and of the human race.

[darck]

how about explaining what the quantum eraser experiment

[neuralelectric]

Great video. If the photon bounces off the quantum chair and hits you in the eye, then it counts as an "observation". What if the photon misses your eye and travels off into space?

[christian]

I like Sabine hossenfelders video about super determanism