[extropy-chat] Precognition on TV
Eliezer S. Yudkowsky
sentience at pobox.com
Fri Mar 16 05:18:14 UTC 2007
Damien Broderick wrote:
> Well, to be other than sardonic for a moment: why not? The groundwork
> for a lot of academic work is begun in the corridor, the cafeteria,
> after the colloquium, or in emails. If you feel strongly that
> considerations of conditional independence (or whatever; you were
> cryptic) necessarily undermine *in advance* both Cramer's current
> physics experiment and Utts's statistical analyses, I can't see why
> you shouldn't mention to them the gaping hole in their apparatuses.
> If not via personal communication, then perhaps in the form of a
> brief letter to a scientific or mathematical journal?
People looking for crazy things don't always find what they're looking
for but they often find all sorts of interesting other things; it's why
I cheer on the people looking for quantum effects in neurons.
The reason my head would explode if someone sent a message into the past
is that it would violate the principle that points in spacetime
influence only neighboring points in spacetime - that's what I mean by
the Markov principle. This seems to be built in an absolute and
fundamental sense into the structure of reality.
But that's not a physical calculation, just a belief about the character
of physical law. And just because my head would explode if it failed
doesn't mean that it shouldn't be tested as hard as anyone can. If I
wrote a letter like that, it would be an explanation of how important it
was to test the theory - not of why the test should not be performed.
A novel and interesting test whose negative answer you are absolutely
sure of, is a good experiment to perform. I wouldn't want to see some
idiot peer reviewer cancelling their grant because they thought only
experiments with expected positive results should be performed.
Nonetheless, Damien, I'm pretty damned sure that neurons can't predict
Eliezer S. Yudkowsky http://singinst.org/
Research Fellow, Singularity Institute for Artificial Intelligence
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