[extropy-chat] Is Many Worlds testable?

[Lee Corbin]

Damien writes

>>After the electrons pass the plate but before they hit the photographic
>>film (just place the film a long way away to give you time)
>>the mind then uses quantum erasure to completely destroy his memory
>>of which slit the electrons went through.
> 
> This is probably a silly suggestion, but could a physicist do the 
> observing directly, and then be dosed with Rohypnol or some other 
> drug interrupting short term memory, preventing the memory of 
> observation from going into long term storage?

The problem is that the memory affecting drug doesn't restore
the physical object to a state that is identical to what is happening
in the other branch.

In other words, merging happens when two universes are exactly
(at least locally) completely identical.  Therefore, almost any
effect at all is bound to create disturbances. So while the person
may be brought to forget, the physical universe does not. 

For instance, there is probably a gravitational record in your house
of all your movements today.

I don't know why gravitons don't emerge from the photon in 
universe A that is traveling through slit 1 that forever make
that universe distinct from universe B---but the ways of
decoherence are not given unto me.

Lee