On Mon, Dec 24, 2018 at 3:45 PM Jason Resch <[email protected]> wrote:
> On Sat, Dec 22, 2018 at 9:33 PM Brent Meeker <[email protected]> wrote: > >> On 12/22/2018 12:04 PM, Philip Thrift wrote >> >> >> https://www.eurekalert.org/pub_releases/2018-12/lsu-be122018.php >> >> Theoretical physicists developed a theory called loop quantum gravity in >> the 1990s that marries the laws of microscopic physics, or quantum >> mechanics, with gravity, which explains the dynamics of space and time. >> Ashtekar, Olmedos and Singh's new equations describe black holes in loop >> quantum gravity and showed that black hole singularity does not exist. >> >> >> "In Einstein's theory, space-time is a fabric that can be divided as >> small as we want. This is essentially the cause of the singularity where >> the gravitational field becomes infinite. In loop quantum gravity, the >> fabric of space-time has a *tile-like structure*, which cannot be >> divided beyond the smallest tile. My colleagues and I have shown that this >> is the case inside black holes and therefore there is no singularity," >> Singh said. >> >> "These tile-like units of geometry--called 'quantum excitations'-- which >> resolve the singularity problem are orders of magnitude smaller than we can >> detect with today's technology, but we have precise mathematical equations >> that predict their behavior," said Ashtekar, who is one of the founding >> fathers of loop quantum gravity. >> >> >> But is this consistent with https://arxiv.org/abs/1109.5191v2 which >> showed spacetime to be smooth down to 1/525 of the Planck length? >> > > Brent, > > Wouldn't this be a successful prediction of Bruno's theory? In another > thread you said it had only made retrodictions, but wasn't one of Bruno's > predictions that space and time would be continuous (not discrete), > therefore it would predict LQG is false, and then > https://arxiv.org/abs/1109.5191v2 would be a confirmation of that. > How did Bruno predict that from a digital (integral) model)? And where did he make such a prediction? Bruce -- 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.
