[ExI] John Preskill on Quantum Computing

Adrian Tymes atymes at gmail.com
Wed Jun 13 19:51:55 UTC 2018

The metaphor about the book came off as misleading to incorrect
depending on the interpretation - and, rather than trying to clearly
explain what entanglement actually is, going off on how it's all
mysterious and spooky.  The comparison to the water bottle reinforced
that impression.  At that point I judged it to be yet more pablum and
lost interest.

(No, when you look at an entangled particle, its information is not
hidden from you.  Rather, if you look at one entangled particle, the
unusual thing is that you then know properties about its entangled
partner - even if said partner is light years away, you know the
information instantly.)

On Wed, Jun 13, 2018 at 8:17 AM, John Clark <johnkclark at gmail.com> wrote:
> I thought this video was very good, if you're interested in quantum
> computers you should take a look.
> https://blog.ycombinator.com/john-preskill-on-quantum-computing/
>  John K Clark
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