Re: what relation do mathematical models have with reality?

2005-07-24 Thread Aditya Varun Chadha
Greetings, Here's my Rupee 1 on the connection between abstract models and reality; Although it is ofcourse debatable, I hold that what we call reality is our minds' understanding of our sensory perceptions. Thus the notion of (our) reality depends on: 1. The nature of mind Let's assume

Re: The Time Deniers and the idea of time as a dimension

2005-07-24 Thread Russell Standish
On Thu, Jul 21, 2005 at 02:30:47PM +0200, Bruno Marchal wrote: Are there reason to believe that (physical, or local) time could have a scale invariant fractal dimension (between 1 and 2, bigger?) ? Does it make sense ? I don't know if this is relevant, but Laurent Nottale published a

Re: what relation do mathematical models have with reality?

2005-07-24 Thread Hal Finney
Brent Meeker writes: Here's my $0.02. We can only base our knowledge on our experience and we don't experience *reality*, we just have certain experiences and we create a model that describes them and predicts them. Using this model to predict or describe usually involves some calculations

Re: what relation do mathematical models have with reality?

2005-07-24 Thread Russell Standish
On Sat, Jul 23, 2005 at 06:09:39PM +1000, [EMAIL PROTECTED] wrote: On that note I'm not sure Wheeler's description is the same. In my idea of the calculus all there is is the sheets of paper. There are no symbols (no intrinsic representation). There are intrinsic rules of formation and

Re: what relation do mathematical models have with reality?

2005-07-24 Thread Stephen Paul King
Hi Aditya, I do not see anything in your reasoning that I would disagree with. ;-) It seems that you subscribe to a concrete interpretation of mathematics, which is one that I take on occasion. I merely wish to comprehend the ideas of those that take a Pythagorean approach to mathematics;

Re: what relation do mathematical models have with reality?

2005-07-24 Thread Hal Finney
Forwarded on behalf of Brent Meeker: On 24-Jul-05, you wrote: Brent Meeker writes: Here's my $0.02. We can only base our knowledge on our experience and we don't experience *reality*, we just have certain experiences and we create a model that describes them and predicts them. Using

RE: possible solution to modal realism's problem of induction

2005-07-24 Thread Brian Holtz
Title: Message AP: The question of whether two chunks of matter are the samesurely has little to do with specifications. BH:You just did it again. Would you still say "surely" if in yourstatementyou replace "chunks of matter" with "souls" or "spirits" or "logicallypossible