Quantum Theory of the Classical ▸ KITP Public Lecture by Wojciech Zurek

[@graymars1097]

Wow! He blew my mind. I always had problem understanding the whole mechanism of this idea that a superposition reality (quantum world) creates a “visible to us” probabilistic mix. He made me understand it. Perfectly actually. “You see me and you interact with me through environment” is a fantastic example of his view. Brilliant man. Thank you so much for uploading this. Let me go science fiction: I wonder if is it possible for a conscious being, like humans, to evolve in such a way that their “objective reality” coming from the same quantum world as us, differs from our (humans) current “objective reality”? Or if the environment is the same, the “reality” is going to be same?! But again, humans themselves are a product of the environment! Weird!

[@jaynemacklyne1462]

I'd love something on suez Great to hear European voices. Thanks very informative

[@forestpepper3621]

Here is my amateur understanding of why we normally experience "classical physics" in our daily lives, rather than "quantum physics". Basically, in quantum mechanics, when a particle is first observed at point-A and later observed at point-B, it theoretically travels along every possible path from point-A to point-B. However, there is a probability associated with each possible path. At the scale of our daily experience, the path according to "classical physics" has a vastly greater probability than any other path from point-A to point-B. It is primarily at extremely small sizes, perhaps smaller than an atom, that the probability of non-classical paths become significant. Richard Feynman's "5 Easy Pieces" or his "Another 5 Easy Pieces" books talk about these ideas.

[@ExistenceUniversity]

Great lecture

[@ExistenceUniversity]

@Astute Cingulus why did you do this?

[@surjitbhatti1623]

Excellent!

[@ramonbrescovici8970]

fantastic

[@alexlang178]

thank you for this great talk! I have the following question: How come the environment can make multiple copies of the system? I thought information cannot be copied in quantum mechanics

[@nedabathaee2751]

An unknown state cannot be perfectly copied in QM. We can have imperfect ones what actually environment gives an observer.

[@ZeranZeran]

I wish I was smart enough to understand this.