On 1/10/2017 11:17 AM, Kevin Wampler wrote:
>
> Unfortunately I *think*
> wavefunction collapse (presuming as the video does that it exists) would
> actually decrease the quantum-mechanical (i.e. von Neumann) entropy as
> opposed to increase it as the video claims.
>

After a bit more research it appears that I was totally wrong in my 
understanding of what a "measurement" means in terms of the quantum 
density matrix.  As you can read here 
(https://en.wikipedia.org/wiki/Density_matrix#Entropy), wave function 
collapse can only increase von Neumann entropy (which is good and makes 
sense now that I better understand it).  You'll also note that the same 
link mentions that a measurement *decreases* quantum information, 
contrary to the videos claims as to their equivalence.  I don't pretend 
to have a good understanding of this though, and will refrain from 
further speculation since I feel I'm as likely to be wrong as correct.

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