Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread Philip Thrift
On Wednesday, February 20, 2019 at 1:06:25 AM UTC-6, agrays...@gmail.com wrote: > > > > On Tuesday, February 19, 2019 at 8:16:51 PM UTC-7, Brent wrote: >> >> >> >> On 2/19/2019 5:10 PM, agrays...@gmail.com wrote: >> >> >> *What you wrote makes no sense. It fails to explain why motion occurs in

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread agrayson2000
On Tuesday, February 19, 2019 at 8:16:51 PM UTC-7, Brent wrote: > > > > On 2/19/2019 5:10 PM, agrays...@gmail.com wrote: > > > *What you wrote makes no sense. It fails to explain why motion occurs in > the absence of force. AG * > > > So did Newton: "A body in motion will remain in motion." >

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread Brent Meeker
On 2/19/2019 5:10 PM, agrayson2...@gmail.com wrote: *What you wrote makes no sense. It fails to explain why motion occurs in the absence of force. AG * So did Newton: "A body in motion will remain in motion." Brent -- You received this message because you are subscribed to the Google

Advanced LIGO

2019-02-19 Thread John Clark
LIGO should get back online and start detecting gravitational waves again in about a month after being upgraded, and now they're talking about the upgrades that will come after that. By 2022 they expect to be able to detect one Black Hole merger a month and by 2025 one per hour. The quality of the

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread agrayson2000
On Tuesday, February 19, 2019 at 2:50:42 PM UTC-7, John Clark wrote: > > > > On Tue, Feb 19, 2019 at 1:28 PM > wrote: > >> >> > >> If you want to meet me in Manhattan you're going to have to give me 4 >>> numbers (aka dimensions); 2 of them will give me the street corner, another >>> one will

Re: When Did Consciousness Begin?

2019-02-19 Thread Brent Meeker
On 2/17/2019 2:10 AM, Bruno Marchal wrote: But the machine itself will not believe us, or understand this. Why not? It can't prove what algorithm it is, but it can know that we know...so why would it disbelieve us. Tha machine becomes inconsistent if it assumes its consistency (cf Rogers’s

Re: When Did Consciousness Begin?

2019-02-19 Thread Bruno Marchal
> On 15 Feb 2019, at 19:50, Brent Meeker wrote: > > > > On 2/14/2019 3:14 AM, Bruno Marchal wrote: >>> On 14 Feb 2019, at 06:44, Brent Meeker wrote: >>> >>> >>> >>> On 2/12/2019 5:34 AM, Bruno Marchal wrote: If we could knew which machine we are, we could define consciousness, or

Re: When Did Consciousness Begin?

2019-02-19 Thread Bruno Marchal
> On 15 Feb 2019, at 20:37, John Clark wrote: > > On Fri, Feb 15, 2019 at 1:15 PM Bruno Marchal > wrote: > > > I will do a personal confession: I have never believe in matter, > > Matter doesn't care if you believe in it or not, it will just continue doing > what

Re: When Did Consciousness Begin?

2019-02-19 Thread Bruno Marchal
> On 15 Feb 2019, at 19:53, Brent Meeker wrote: > > > > On 2/14/2019 3:26 AM, Bruno Marchal wrote: >> Don’t hesitate to find some argument in favour of primitive materials, but >> in my opinion, this is highly speculative, and never used in physics. > > But the non-material primitive is

RE: When Did Consciousness Begin?

2019-02-19 Thread Bruno Marchal
Hi Philip, I cannot answer in your text for reason of bad formatting. It looks hard to be sent too. I comment here: when you say: << Matter is everything that we can see, smell, touch, feel and even can't see. >> I am OK with this definition. But when you add << Everything is matter,

Re: Recommend this article, Even just for the Wheeler quote near the end

2019-02-19 Thread Bruno Marchal
> On 15 Feb 2019, at 20:43, Philip Thrift wrote: > > > > On Friday, February 15, 2019 at 12:01:26 PM UTC-6, Bruno Marchal wrote: > >> On 15 Feb 2019, at 16:12, Philip Thrift > >> wrote: >> >> >> >> On Friday, February 15, 2019 at 5:35:02 AM UTC-6, Bruno Marchal wrote: >> >>> On 15 Feb

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread John Clark
On Tue, Feb 19, 2019 at 1:28 PM wrote: > > >> If you want to meet me in Manhattan you're going to have to give me 4 >> numbers (aka dimensions); 2 of them will give me the street corner, another >> one will tell me what floor to get off the elevator, and the fourth will >> give me the time of

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread Brent Meeker
On 2/19/2019 3:41 AM, agrayson2...@gmail.com wrote: *I don't understand your comment. Curvature of space-time should be independent of coordinate systems, so how can there be different extremals for two fixed events in the manifold?  AG* There can be a "hill" between the two events so that

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread Brent Meeker
On 2/19/2019 3:15 AM, agrayson2...@gmail.com wrote: On Monday, February 18, 2019 at 3:37:19 PM UTC-7, Brent wrote: On 2/18/2019 2:05 PM, agrays...@gmail.com wrote: *Is it correct to say that in 3-space with the Euclidian metric the geodesic is the path determined by minimal

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread agrayson2000
On Tuesday, February 19, 2019 at 6:41:52 AM UTC-7, John Clark wrote: > > On Mon, Feb 18, 2019 at 5:30 PM > wrote: > > *> Sure, but why does this obvious fact force us to merge space and time >> in one concept, aka a manifold?* >> > > If you want to meet me in Manhattan you're going to have to

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread John Clark
On Mon, Feb 18, 2019 at 5:30 PM wrote: *> Sure, but why does this obvious fact force us to merge space and time in > one concept, aka a manifold?* > If you want to meet me in Manhattan you're going to have to give me 4 numbers (aka dimensions); 2 of them will give me the street corner, another

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread agrayson2000
On Tuesday, February 19, 2019 at 4:15:55 AM UTC-7, agrays...@gmail.com wrote: > > > > On Monday, February 18, 2019 at 3:37:19 PM UTC-7, Brent wrote: >> >> >> >> On 2/18/2019 2:05 PM, agrays...@gmail.com wrote: >> >> *Is it correct to say that in 3-space with the Euclidian metric the >>

Re: Questions about the Equivalence Principle (EP) and GR

2019-02-19 Thread agrayson2000
On Monday, February 18, 2019 at 3:37:19 PM UTC-7, Brent wrote: > > > > On 2/18/2019 2:05 PM, agrays...@gmail.com wrote: > > *Is it correct to say that in 3-space with the Euclidian metric the > geodesic is the path determined by minimal distance between two points, > whereas in 4-space with