On Fri, Mar 09, 2018 at 08:23:40PM -0800, Brent Meeker wrote: > > momentum produced from it unless there was a symmetry, in this case > > the fact that the laws of physics are the same at all points in space. > > Someone could then ask why that is, and at this time the best answer we > > could give is that’s just what we observe. As far as I can see it is not > > a logical necessity, physics could have been different from one place to > > another but we see that is not the case. > > > > If that were the case then we would look for some other variable(s) that > would account for the difference in order to arrive at a more comprehensive > theory that, with the new variable(s), made the theory the same both > places. The idea of physics as a fundamental theory is that it should be > the same at all times and places. So if it's not, we either look for a > better theory or (temporarily) give up and call the variations "geography". > As my friend Vic Stenger put it, physics assumes POVI, Point Of View > Invariance. > > Brent
Exactly - POVI is a choice, not a necessity. It makes the theories simpler. -- ---------------------------------------------------------------------------- Dr Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Senior Research Fellow [email protected] Economics, Kingston University http://www.hpcoders.com.au ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
