On Sunday, October 28, 2018 at 11:38:02 PM UTC, Brent wrote: > > > > On 10/28/2018 4:50 AM, [email protected] <javascript:> wrote: > > > > On Sunday, October 28, 2018 at 10:27:07 AM UTC, Tomas Pales wrote: >> >> >> >> On Sunday, October 28, 2018 at 3:37:05 AM UTC+1, [email protected] >> wrote: >>> >>> >>> *So what? The point I am making is that some mathematical objects exist >>> but are not instantiated in physical reality, thus falsifying his >>> hypothesis, unless you insist that they are instantiated in other >>> universes, in which case you have a non falsifiable theory, which isn't a >>> scientific theory. AG* >>> >> >> If it is logically consistent for a mathematical object to be >> instantiated in a universe then it is instantiated there. >> > > *I think you mean that if some mathematical construct does not contradict > the laws of physics in some universe, then it must be instantiated in that > universe. * > > > That's not what he said. He said all logically consistent objects must > exist. Breaking one of the laws of physics, e.g. not conserving > 4-momentum, is not a* logical contradiction* of anything. >
*I definitely recall him saying that NOT breaking a law of physics would be a necessary condition for something to be instantiated. AG* > > Brent > > > *And the reason for that is what? Why must all logically consistent > constructs be instantiated? This idea seems perilously close to another > false idea; namely, that every outcome of a quantum experiment must be > observed in some universe. AG * > > >> Whether it is a falsifiable or scientific theory is a different matter. >> > > *Since it can't be falsified and makes no testable predictions, what value > does it have? AG* > > Tegmark's view, logical consistency is existence, so anything that is > logically consistent exists, by definition. You can devise other > definitions of existence by arbitrarily restricting this one. > > -- > 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] <javascript:>. > To post to this group, send email to [email protected] > <javascript:>. > Visit this group at https://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > > > -- 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.
