David Deutsch - Why is the Quantum so Strange?

To know reality, one must confront the quantum. It is how our world works at the deepest level. What's the quantum?
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[@MRegah]

I'd like to point out how impressed I am by the interviewer! R.L. Kuhn; just looked him up. Amazing questions, he seems to have a good grasp of what Deutsch is talking about and especially what he means; he boils things down with smart little remarks. and is a great active listener! Wow. (And then, David Deutsch... of course: what an amazing mind and also communicator he is)

[@maxcarlsson8334]

David really is the greatest explainer there is.

[@serenity748]

that made a whole lot of sense. david deutsch knows how to explain stuff

[@DeltrusPoE]

This guy is smart.

[@user-vx2wp1ez5s]

Also comes across as amiable and enthusiastic.

[@dumpsky]

a charming understatement. :-)

[@keylanoslokj1806]

but insane. as tesla said you can think deeply but quite insane

[@dylanbrown8792]

Stfu

[@hqs9585]

You can make this statement only as calibrated by your "level of smartness", Does that really make the guy smart? or do you mean he is knowledgeable.

[@josephshawa]

Wow! Best segment yet!

[@paul-filipilasca1632]

Great interviewaa

[@Dybbouk]

As DD puts it in one of his books, the stuff in the universe is like words on a page. Except the page doesn't exist. The structure is the words, sentences and paragraphs. Could this explain universality?

[@karanchanaya2981]

Hope Mr Deutsch is well and Great Genius an hard working soul an family.

[@saganworshipper6062]

Mind blown!

[@Dyslexic-Artist-Theory-on-Time]

The Universe could be mathematical because it is based on a geodynamic three dimensional process that is relative to each object or life form or relative to the atoms at low temperatures. At higher temperatures the process is relative to plasma with charge being able to cover a large area of interstellar space. Therefore we have the same process unfolding at the large scale of cellular space and at the small scale with cellular life. This can be seen with charge being relative to the membrane of each living cell!

[@AlOfNorway]

Simply beautiful.

[@wulphstein]

The virtual photon can be argued to be the carrier of physics laws for our universe . It's all about where to put energy*. Anything that can contain energy must be configured with physics constants, like h, c, so that it's energy can be expressed. The photon can emit from a point and travel outward at the speed of light. Because c is built into the laws of physics, it makes sense to assume that the laws of physics are implemented by photons (virtual ).

[@timothyhall7606]

Name: David Deutsch, Chosen subject: Theoretical Physics, Favourite word: Instantiate.....

[@pmcate2]

@5:20 I've never been able to verify this Feynman quote

[@chrispardo8869]

What an Icon

[@minervavelez6678]

Maravilloso.

[@JonStark117]

Anyone else here because Tony Stark brought this up in Endgame?!😂🤯

[@rhythmhoods3463]

😹😹😹😹 Mee!!!

[@314biggy]

Yes

[@jordanosborne8906]

@@314biggy me!

[@clapdrix72]

No

[@Alexii18]

Haha 😂 yes

[@nagualdesign]

I could listen to the Deutsch-meister for hours. It's a shame you've elected to split this interview into arbitrary chunks that I have to watch separately and in random order.

[@nagualdesign]

I tried watching a couple more of these and, as expected, became frustrated trying to grasp the logical flow of conversation due to the random ordering. At that point I gave up and went to www.closertotruth.com/ I must say that I'm very glad I did. Your KZbin channel is poorly constructed but your website is rather brilliant. :-)

[@lucaspierce3328]

Think of it in a process theology perspective; if existence is real in the first place then it's self-existent and it's eternal and therefore infinite and self-referential and existence is like the validity of mathematical statements, they are self evident.

[@thesilvervigilante]

Pure Gold.

[@jonasschwalb2787]

I don't think you can reconcile the notions of time, space, or other physical concepts that we as humans beings have evolved to use as a part of the mechanism by which we experience this illusion that is our experience*, with the hard scientific understanding that comes from a rigorous method. *(others would use the term consciousness here, but I think it used in way to many conflicting contexts to be used properly in any context) To be able to study and attempt to understand these topics in a serious manner, one has to embrace the illusion as what it is and not freak out about it. Then you are able to contemplate these subjects without having your whole reality (or rather your personal illusion) fundamentally changed, whenever you change or advance your fundamental model of reality.

[@noseefood1943]

in college applied physics class, i was taught that quantum mechanic is a study of quanta. that's all i remember...

[@hqs9585]

Either you have memory issues or you simply went to the wrong college! I say this respectfully, and half jokingly. I do get your statement though.

[@thesilvervigilante]

Living Legend

[@TheWestlifebigfan]

Come back here from Avengers: Endgame to explore more about Quantum

[@Dyslexic-Artist-Theory-on-Time]

Could the Quantum be so strange because quantum mechanics represents the physics of ‘time’ with an emergent future unfolding photon by photon with classical physics representing process over a period of time as in Newton’s deferential equations.

[@bigmike4758]

David Deutsch should play Doctor Who, he fits the part so well.

[@AndyHooper]

kzbin.info/www/bejne/eWfCmKulgdyljdk ;-)

[@undertheairwaves]

You could also say that physics is reducible to computation. In other words, the uni(multi)verse is just an information processing system. Seems awfully close to saying that there is no distinction between simulation and reality at the base level. ‘Reality’ is just an emergent property of sufficiently complex information processing systems.

[@fanyujie5209]

Why we restrain our thought to focus only on the 3 Dimension and give the conclusion that quantum world is 'weird'. The uncertainty might be Caused by the interaction from higher dimension since it is microscopic particle we are talking about.

[@mriganksonawane1277]

Computation is just another form of physics. Change my mind.

[@Boogieplex]

He looks like Alvin Lee

[@sngscratcher]

"The quantum" seems strange because we insist on looking at it through the lens of our biases.

[@Chopcee]

Unless you reduce your self to Planck level your bound to view it with bias.

[@fanyujie5209]

Why we restrain our thought to focus only on the 3 Dimension and give the conclusion that quantum world is 'weird'. The uncertainty might be Caused by the interaction from higher dimension since it is microscopic particle we are talking about.

[@ThalesPo]

1:04 "...the set of computable functions which are familiar to us and made of things like addition and multiplication and so on... from a mathematician's point of view, they form an infinitesimally tiny subset of the set of all possible mathematical relationships, and yet, physics is made entirely out of those, and if it weren't, we wouldn't be able to know any physics." Wait, what? What are the mathematical relationships that are not computable? Never heard of those.

[@ThalesPo]

+Irish Jester So how does he know these other relationships exist if he is not familiar with them? I was reading about "computability theory" and "computable functions", but couldn't find any example of a non-computable function.

[@ThalesPo]

+Irish Jester But he said "... if it weren't, we wouldn't be able to know any physics." Implying that he meant that the relationships are non-computable. If you read about it, there is such a thing as a semi-computable function. But I think the confusion is with the definitions of "compute", "relation" and "existence", to what not everyone agrees upon. "Compute" means just transform a structure or piece of data to be represented in a different way or type. So I guess it would depende on the specific types that he is referring to to determine the computability.

[@jacobvandijk6525]

@ 0:07 "i'M NOT INTERESTED IN APPLICATIONS" I wouldn't be too. QC has almost none.

[@winstonchang777]

Sometimes, physics is not rigid. We expect and like things to be right , correct, and set rigidly. What if things are correct as long as you see it that way. And there are many ways.

[@emililiacevedotopi1268]

I want to beak free for my best friends anything else at the universe faster conversation

[@wcbbsd]

Rulers and protractors... endless fun..yay.

[@RonaldoEuSi]

He looks like a time traveller from the middle ages

[@bizzee1]

Shhhh! Don't go blabbing. You are going to blow his cover.

[@drsalka]

Hahaha the white adder. But i lololove David so much 💙😇

[@hdwe1756]

Wait - we don't have quantum computers?

[@SirDimpls]

D-Wave and IBM have a working very basic quantum computer that can only do quantum annealing operations. Things are moving fast towards general purpose Q computers, a team has built a simulation of a true quantum computer having 45 qubits and the performance output was insane compared to our current computers. Quantum supremacy is calculated to be at around 49 qubits, if we built a single Q computer like that it will have enough processing power to put our fastest supercomputer to shame, crazy stuff :) here's the article about the simulation: goo.gl/2aepTb

[@mybluemars]

No, not a true one. Not yet!

[@hdwe1756]

So the ones IBM and DWave make aren't actually turing machines?

[@rolfdekleer643]

www.technologyreview.com/s/544276/google-says-it-has-proved-its-controversial-quantum-computer-really-works/

[@keylanoslokj1806]

not one cause Quantum theory is bogus

[@josephhruby3225]

Quantum anything hurts my brain

[@pacosamo]

Must admit that I didn´t get a single of waht he said. :(

[@dumpsky]

you also wrote "waht"... :(

[@pacosamo]

Sorry, my dyslexia at work. :(

[@dumpsky]

:-) cheers, man!

[@Brajgamer]

Harry Potter turned that old?

[@mybluemars]

It is October 25 2017 and a real quantum computer has not been built that. Remember that!

[@rolfdekleer643]

www.technologyreview.com/s/544276/google-says-it-has-proved-its-controversial-quantum-computer-really-works/

[@rajnish8918]

Bill gates grew his hair ?

[@ReubenLL28]

"The quantum" is a nonsensical statement. The quantum what? Quantum is not a noun, it's an adjective. It would be correct to say "why is quantum mechanics so strange" but not the way it's currently written.

[@davidwright8432]

'Quantum' is a Latin-derived word meaning 'an amount.' It's equivalent to 'some.' In physics usage, it means a minimum amount - of energy. Just as the distance between rungs of a ladder is a minimum amount - of distance up or down. You can't go up half the distance between rungs; it's whole numbers only. So yes, it does make sense to say 'The quantum' if the context makes clear you're talking about energy - say of a photon.

[@pmcate2]

No one likes a grammar nazi

[@lucaspierce3328]

All quantum manifestations can be reduced to a single phenomena, that's entanglement. In quantum tunneling, the electron is already on the other side as they are one electron as well as every other electron in the universe. superposition; all the places it is at the same time, is in fact that each particle is actually one particle. There is no decoherence only different patterns of coherence within the range of the ground state/ZPE and maximal energy level. This is pan-cosmo-quantum supra-conscious holographic in-formational memory field of co-entangled states and explains dark energy as the self-organized formation of new entangled states by attraction(such as gravity, electromagnetism etc) through co-entanglement i.e. the arrow of time and entropy. The past is in space or the trace is in space as qauntum fluctuations(the vacuum energy level) that drives cosmic expansion or time forward.

He looks like a time traveller from the middle ages.

[@EdwinLuciano]

There were no eyeglasses in the Middle Ages.

[@wail9652]

For My opinion . The quantum shy inanimate ! And It movement by logic No. It's programming to move straight forward and any roadblocks will be "half crash point" "Chang the way" its going back again to the source ! Because program to move on , than again going to movement by deferent angles . the big Problem quantum very shy ??? If you watching it defiantly will not working well .

[@viswavijeta5362]

This man looks like a Chinese man in Gngnum style who comes out of his Ferrari.

[@winstonchang777]

Anything is only strange only because we have a set of NORMAL expectations about physicality.

[@bfkc111]

May I introduce you, Misses The-Whole-Point.

[@Edenssunlight]

lose the moustache... makes your face look dirty...lol

[@intercosmicrationalist8556]

Some people look creepy with mustaches, this guy is not one of them.

[@thegamemah]

Is Back to the Future a bunch of bull$hit? asking for a friend.

[@keylanoslokj1806]

because its nonsense. thats why its so strange

[@etienne7774]

I like to know WHO made the cake instead of knowing what the cake is made from. I know God, Jesus personally and without him your a fool heading the wrong way!

[@pmcate2]

Who made god?

[@etienne7774]

@@pmcate2 Why do you ask that?

[@pmcate2]

@@etienne7774 Is it not a legitimate question? Why do you ask who made the cake?

[@etienne7774]

@@pmcate2 View Dr William Lane Craig. Physics deals with looking for causes in our physical universe. God is not part of this physical universe, therefore you are mistaken. Also view short 4min clip "where did God come from" by Kent Hovind.

[@pmcate2]

​@@etienne7774 The question of where did god come from is the same as where did the universe come from except the former is anthropomorphized, just like how lightning, the sea, and the sun were anthropomorphized by people who had less knowledge than us today. In response to Kent's video: He claims that god is outside space, time and matter. Now, what does that even mean? How is anyone even supposed to reason about an entity outside space, time, and matter? Even Kent admits this as he says "if I could fit the infinite god in my 3 lbs brain he would not be worth worshipping". So here we have an admission that ignorance is a good thing and is actually a requirement of religion. Think about it; he is saying that the correct explanation to reality is an entity that we cannot fully reason about. Well then...if we can't reason about it, how can we even come to that conclusion? That's why adhering to god as an explanation isn't really an explanation. What disturbs me even more is when people like you say things like "without him your a fool heading the wrong way". Once you have said something like that, religion has become a tool for threatening instead of a tool for explaining. At that point it becomes "here's why things are, and if you don't agree you're going to hell".