On 3 February 2014 00:04, Telmo Menezes <[email protected]> wrote:
> On Sat, Feb 1, 2014 at 10:10 PM, Edgar L. Owen <[email protected]> wrote: > > Hi Telmo, > > > > No, because I don't have to remember that my clock moved. I can actually > > OBSERVE it in the process of moving. That's one of many reasons block > times > > including Bruno's don't make sense. > > Could you observe the clock moving if you had no memory? For example, > could you describe an algorithm that detects movement without > resorting to keeping state in some variable? > Nicely done. You put your finger on the crux of the argument. A block universe requires that the state of variables are constrained to either stay the same or change continuously, since all worldlines are 4D structures embedded in space-time. "Presentism" has no obvious need for such constraints, hence it has to smuggle in what is effectively a block universe by making use of memory - which is exactly what BU proponents say allows us to have a sense of being part of an apparent "flow" of time. -- 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 http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
