Title: Re: Many Fermis Revisited
At 22:47 +0100 13/01/2003, scerir wrote:
[George
Levy]
Here is a (white) hared
brained idea
on how to build a time
machine.
You need a very good
recording device
and a Quantum Suicide
(QS) machine.
For a simpler device
see:
http://www.fourmilab.ch/rpkp/chan
Tim, Hal, Russell
Since we have several futures ( and several pasts), time travel is just a
particular case of many-world travel.
Here is a (white) hared brained idea on how to build a time machine. You
need a very good recording device and a Quantum Suicide (QS) machine.
1) You allow the
On Monday, January 13, 2003, at 10:47 AM, George Levy wrote:
Tim, Hal, Russell
Since we have several futures ( and several pasts), time travel is
just a particular case of many-world travel.
I somewhat agree...and we are not the first to make this point.
However, we need to be careful
Tim May wrote
If you mean that
"many presents" have "many pasts," yes. But the current present only has
a limited number of pasts, possibly just one. (The origin of this asymmetry
in the lattice of events is related to our being in one present.)
I mean one (many?) present has many
[George Levy]
Here is a (white) hared brained idea
on how to build a time machine.
You need a very good recording device
and a Quantum Suicide (QS) machine.
For a simpler device see:http://www.fourmilab.ch/rpkp/chan-evid.html
[Tim May]
I am quite strongly persuaded that "many pasts for a
In the interests of doing wild speculation here, which some folks are
asking for more of, here's a followup to a discussion we had a few
weeks ago:
The Fermi Paradox asks the question: If extraterrestrial civilizations
are at all common, even at the level of a few dozen per galaxy per
galaxy
The key assumption here is whether advanced technological civilisation
(such as ourselves) is easy or difficult on the timescale of the age
of the universe (10^10 years).
Assuming that this is difficult (contra to your comments below),
solves the standard Fermi paradox (namely other advanced
Michael Clive Price wrote and widely distributed his Many-Worlds FAQ
back in the 90s, and he has a couple of questions that touch on this
topic:
http://www.hedweb.com/everett/everett.htm#linear
Is physics linear?
Could we ever communicate with the other worlds?
On Sunday, January 12, 2003, at 05:38 PM, Russell Standish wrote:
The key assumption here is whether advanced technological civilisation
(such as ourselves) is easy or difficult on the timescale of the age
of the universe (10^10 years).
Assuming that this is difficult (contra to your comments
Tim May wrote:
I made no assumptions of nondifficulty (to use your phrasing).
This is in fact why I picked the Thogians a few hundred million
light-years from us. Now perhaps you think advanced civilizations are
even rarer than in this example, there have not yet been any
civilizations
On Sunday, January 12, 2003, at 06:54 PM, Russell Standish wrote:
(I'll limit myself to only commenting on the last, and most interesting, point.)
This is where I lose your argument. I can't see why an MWI
communication capable civilisation should be able to spread throughout
our universe any
Tim May wrote:
Imagine what will happen if strong MWI communication happens in our
universe, our branch:
-- presumably access to all of the manifold knowledge from every
universe which has done science, engineering, etc.
-- vast amounts of technology (as some universes are ahead
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