Re: Entropy, Time's Arrow, and Urns

2002-08-18 Thread Jesse Mazer
Tim May wrote: >Time for a digression. The classic urn experiment, with Price's objections. > >And let me throw in something several members of this list will likely >appreciate: a bet on the outcomes (a la Bayesian reasoning, a la market >processes, a la Robin Hanson's idea futures, a la proba

Re: Entropy, Time's Arrow, and Urns

2002-08-18 Thread Brent Meeker
On 18-Aug-02, Tim May wrote: > Hal has brought up Huw Price's book, "Time's Arrow and > Arhimedes' Point," and especially the > thermodynamic/entropy arguments related to recurrence a la > Poincare, Boltzmann, and others. > A point Price makes several times is th > "..though it needs to be borne

Re: Doomsday-like argument in cosmology

2002-08-18 Thread Hal Finney
Tim May writes: > OK, let us assume for the sake of argument that we should be > overwhelmingly likely to be living in one of these "time-reversed > cycles" (which I distinguish from "bounces" back to a Big Bang state, > the more common view of cycles). > > By the same Bayesian reasoning, it i

Re: Entropy, Time's Arrow, and Urns

2002-08-18 Thread Tim May
(A minor typo is corrected) On Sunday, August 18, 2002, at 01:00 PM, Tim May wrote: > In Sequence One, the two urns are filled with stones of mixed color at > the start of the film. As the main transfers stones, the number of > black and white stones in each of the urns fluctuates, but there

Entropy, Time's Arrow, and Urns

2002-08-18 Thread Tim May
Hal has brought up Huw Price's book, "Time's Arrow and Arhimedes' Point," and especially the thermodynamic/entropy arguments related to recurrence a la Poincare, Boltzmann, and others. A point Price makes several times is th "..though it needs to be borne in mind that not everyone had a clear

Re: Doomsday-like argument in cosmology

2002-08-18 Thread Tim May
On Saturday, August 17, 2002, at 11:37 PM, Hal Finney wrote: > Now you might say, so what, the whole idea that we formed in this way > was so absurd that no one would ever take it seriously anyway. But the > authors of this paper seem to be saying that if you assume that there is > a positive c