Re: What is more primary than numbers?

2019-01-05 Thread Bruce Kellett
On Sat, Jan 5, 2019 at 7:50 PM wrote: > On Saturday, January 5, 2019 at 6:49:43 AM UTC, Brent wrote: >> >> On 1/4/2019 9:20 PM, agrays...@gmail.com wrote: >> >> *Still a little murky. Does coordinate time ever differ from proper time? >> TIA, AG * >> >> >> Of course. That's like asking does

Re: What is more primary than numbers?

2019-01-05 Thread agrayson2000
On Saturday, January 5, 2019 at 6:49:43 AM UTC, Brent wrote: > > > > On 1/4/2019 9:20 PM, agrays...@gmail.com wrote: > > *Still a little murky. Does coordinate time ever differ from proper time? > TIA, AG * > > > Of course. That's like asking does change in longitude ever differ from >

Re: "No black-hole singularities" in an undated loop-quantum-gravity theory

2019-01-05 Thread Bruno Marchal
> On 4 Jan 2019, at 19:35, Brent Meeker wrote: > > > > On 1/4/2019 3:51 AM, Bruno Marchal wrote: >>> On 4 Jan 2019, at 05:16, Brent Meeker wrote: >>> >>> >>> >>> On 1/3/2019 6:01 AM, Bruno Marchal wrote: As a scientist, I just count the evidences, and evaluate the plausibility

Re: [SUSPICIOUS MESSAGE] Towards Conscious AI Systems (a symposium at the AAAI Stanford Spring Symposium 2019)

2019-01-05 Thread Bruno Marchal
> On 4 Jan 2019, at 17:25, Philip Thrift wrote: > > > > On Friday, January 4, 2019 at 10:02:51 AM UTC-6, Bruno Marchal wrote: > >> On 3 Jan 2019, at 15:41, Philip Thrift > >> wrote: >> >> >> >> On Thursday, January 3, 2019 at 7:46:58 AM UTC-6, Bruno Marchal wrote: >> >>> On 2 Jan 2019,

Re: CMBR and Horizon Problem

2019-01-05 Thread agrayson2000
On Tuesday, January 1, 2019 at 6:24:03 PM UTC, John Clark wrote: > > On Tue, Jan 1, 2019 at 3:41 AM > wrote: > > >> *> not all points external to an observer are receding at speed faster >> than light. Still, ISTM that inflation just preserves the temperature >> distribution which exists

Re: CMBR and Horizon Problem

2019-01-05 Thread agrayson2000
On Monday, December 31, 2018 at 1:40:22 AM UTC, Lawrence Crowell wrote: > > On Saturday, December 22, 2018 at 5:46:18 AM UTC-6, agrays...@gmail.com > wrote: >> >> If the temperature was non uniform when the BB occurred, if it occurred, >> why would a sudden increase in its volume, aka

Re: CMBR and Horizon Problem

2019-01-05 Thread agrayson2000
On Monday, December 31, 2018 at 1:40:22 AM UTC, Lawrence Crowell wrote: > > On Saturday, December 22, 2018 at 5:46:18 AM UTC-6, agrays...@gmail.com > wrote: >> >> If the temperature was non uniform when the BB occurred, if it occurred, >> why would a sudden increase in its volume, aka

Re: Materialism and Mechanism

2019-01-05 Thread Philip Thrift
On Saturday, January 5, 2019 at 12:02:53 PM UTC-6, Jason wrote: > > > > On Sat, Jan 5, 2019 at 6:13 AM Philip Thrift > wrote: > >> >> On Saturday, January 5, 2019 at 4:26:11 AM UTC-6, Bruno Marchal wrote: >>> >>> >>> On 4 Jan 2019, at 17:25, Philip Thrift wrote: >>> >>> >>> Physicists today

Materialism and Mechanism

2019-01-05 Thread Philip Thrift
On Saturday, January 5, 2019 at 4:26:11 AM UTC-6, Bruno Marchal wrote: > > > On 4 Jan 2019, at 17:25, Philip Thrift wrote: > > > Physicists today (as I've observed) are not (for the most part) real > materialists. > > > > That is true, and physicists have rarely problem with the consequence of

Re: Materialism and Mechanism

2019-01-05 Thread Jason Resch
On Saturday, January 5, 2019, Philip Thrift wrote: > > > On Saturday, January 5, 2019 at 12:02:53 PM UTC-6, Jason wrote: >> >> >> >> On Sat, Jan 5, 2019 at 6:13 AM Philip Thrift wrote: >> >>> >>> On Saturday, January 5, 2019 at 4:26:11 AM UTC-6, Bruno Marchal wrote: On 4 Jan

Re: Planck Length

2019-01-05 Thread Brent Meeker
To measure small things you need comparably short wavelengths.  If you make a photon with a wavelength so short it can measure the Planck length it will have so much mass-energy that it will fold spacetime around it and become a black hole...so you won't be able to use it to measure anything.

Planck Length

2019-01-05 Thread agrayson2000
What is the argument for the claim that we cannot, in principle, measure any length smaller than Planck length? TIA, AG -- 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

Re: "No black-hole singularities" in an undated loop-quantum-gravity theory

2019-01-05 Thread Brent Meeker
On 1/5/2019 9:49 PM, agrayson2...@gmail.com wrote: 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 *If we can't measure a Planck length, how can

Re: What is more primary than numbers?

2019-01-05 Thread Brent Meeker
On 1/5/2019 12:50 AM, agrayson2...@gmail.com wrote: On Saturday, January 5, 2019 at 6:49:43 AM UTC, Brent wrote: On 1/4/2019 9:20 PM, agrays...@gmail.com wrote: *Still a little murky. Does coordinate time ever differ from proper time? TIA, AG *

Re: What is more primary than numbers?

2019-01-05 Thread agrayson2000
On Sunday, January 6, 2019 at 12:13:16 AM UTC, Brent wrote: > > > > On 1/5/2019 1:28 PM, agrays...@gmail.com wrote: > > The relation is provided by the metric. If you choose different >> coordinate systems (e.g. cylindrical or spherical or whatever) then there >> is different metric tensor.

Re: Materialism and Mechanism

2019-01-05 Thread Philip Thrift
On Saturday, January 5, 2019 at 12:52:19 PM UTC-6, Jason wrote: > > > > On Saturday, January 5, 2019, Philip Thrift > wrote: > >> >> >> On Saturday, January 5, 2019 at 12:02:53 PM UTC-6, Jason wrote: >>> >>> >>> >>> On Sat, Jan 5, 2019 at 6:13 AM Philip Thrift wrote: >>> On Saturday,

Re: What is more primary than numbers?

2019-01-05 Thread Brent Meeker
On 1/5/2019 1:28 PM, agrayson2...@gmail.com wrote: The relation is provided by the metric.  If you choose different coordinate systems (e.g. cylindrical or spherical or whatever) then there is different metric tensor.  So the integral along the path of g_ab dx^a dx^b is the

Re: What is more primary than numbers?

2019-01-05 Thread Brent Meeker
On 1/5/2019 4:56 PM, agrayson2...@gmail.com wrote: On Sunday, January 6, 2019 at 12:13:16 AM UTC, Brent wrote: On 1/5/2019 1:28 PM, agrays...@gmail.com wrote: The relation is provided by the metric.  If you choose different coordinate systems (e.g. cylindrical or

Re: "No black-hole singularities" in an undated loop-quantum-gravity theory

2019-01-05 Thread Brent Meeker
On 1/5/2019 1:50 AM, Bruno Marchal wrote: On 4 Jan 2019, at 19:35, Brent Meeker wrote: On 1/4/2019 3:51 AM, Bruno Marchal wrote: On 4 Jan 2019, at 05:16, Brent Meeker wrote: On 1/3/2019 6:01 AM, Bruno Marchal wrote: As a scientist, I just count the evidences, and evaluate the

Re: What is more primary than numbers?

2019-01-05 Thread agrayson2000
On Saturday, January 5, 2019 at 8:36:34 PM UTC, Brent wrote: > > > > On 1/5/2019 12:50 AM, agrays...@gmail.com wrote: > > > > On Saturday, January 5, 2019 at 6:49:43 AM UTC, Brent wrote: >> >> >> >> On 1/4/2019 9:20 PM, agrays...@gmail.com wrote: >> >> *Still a little murky. Does coordinate

Re: Materialism and Mechanism

2019-01-05 Thread Jason Resch
On Sat, Jan 5, 2019 at 2:05 PM Philip Thrift wrote: > > > On Saturday, January 5, 2019 at 12:52:19 PM UTC-6, Jason wrote: >> >> >> >> On Saturday, January 5, 2019, Philip Thrift wrote: >> >>> >>> >>> On Saturday, January 5, 2019 at 12:02:53 PM UTC-6, Jason wrote: On Sat, Jan

Re: "No black-hole singularities" in an undated loop-quantum-gravity theory

2019-01-05 Thread agrayson2000
On Sunday, December 23, 2018 at 2:33:54 AM UTC, Brent 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

Re: What is more primary than numbers?

2019-01-05 Thread Jason Resch
On Sat, Jan 5, 2019 at 7:15 PM Brent Meeker wrote: > > > On 1/5/2019 4:56 PM, agrayson2...@gmail.com wrote: > > > > On Sunday, January 6, 2019 at 12:13:16 AM UTC, Brent wrote: >> >> >> >> On 1/5/2019 1:28 PM, agrays...@gmail.com wrote: >> >> The relation is provided by the metric. If you choose