[Haskell-cafe] Re: A few ideas about FRP and arbitrary access in time

[John Meacham]

On Tue, Mar 09, 2010 at 05:23:56AM +0000, Aaron Denney wrote:
> On 2010-03-08, Brandon S. Allbery KF8NH <allbery at ece.cmu.edu> wrote:
> > There is a discrete time quantum.  But unless you're doing simulations  
> > at the quantum level, you really don't want to go there (even ignoring  
> > that one second of real time would take a really long time to  
> > calculate on current hardware :); stick to macrocosmic physics, which  
> > is statistically continuous.
> 
> That's ... contentious.  In both quantum mechanics and GR, time is
> completely, flattly, continuous.  In certain extremely speculative
> frameworks attempting to combine the regimes in which they are
> applicable, that may not be the case.  But for accepted physics models,
> time really is continous.

Hmm.. I thought something interesting happened on the scale of the plank
time, 10^-44 seconds or so. Or is that only relevant to our ability to
_measure_ things at that scale and not the continuity of time itself as
far as QM is concerned?

        John

-- 
John Meacham - ⑆repetae.net⑆john⑈ - http://notanumber.net/