Our server costs ~$56 per month to run. Please consider donating or becoming a Patron to help keep the site running. Help us gain new members by following us on Twitter and liking our page on Facebook!
Current time: November 22, 2024, 8:18 am

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[Serious] Is the Past Real?
#91
RE: Is the Past Real?
(October 19, 2022 at 12:56 pm)Angrboda Wrote: I have to wonder if you can have a theory of causality consistent with denial of the past.  I don't think it's necessarily the case that causality as a concept has to survive, but if it's a fiction, it would be one of the more difficult fictions to give up.

it seems to me a theory of casualty unchanged from how we normally understand it works perfectly well in the scenario where our perception of the past is all the artifact of a computer simulation which creates illusion of causality, but the computer itself resides in a real world with an real but entirely different past which we can not perceive, but which also follows the same nature of causality.
Reply
#92
RE: Is the Past Real?
(October 19, 2022 at 1:49 pm)Tomato Wrote:
(October 19, 2022 at 11:24 am)polymath257 Wrote: And since information only goes to the future light cone, we don't get such from the future.

But does that mean the future is NOT real?

And, just because *some* aspects of the past are real, does that mean that *all* aspects are?

Are there some aspects of the future that are real because of their almost certainty?

This cone thing is something I don't understand, but I imagine it's a scientific concept against an omniscient witchy deity as well as human woowoo psychics.

A light cone is just the space that can be covered given a certain amount of time passing. The area increases in all three dimensions at the speed of light, but since it's plotted along the dimension of time, the plot forms a four-dimensional cone. Closer to time zero, the smaller the area; the further from time zero, the larger the area. This is relevant as information cannot travel faster than the speed of light in relativity, so the cone outlines what area of space can possess information about what is occurring at the present (T=0) at a specified point (X,Y,Z=0,0,0).
[Image: extraordinarywoo-sig.jpg]
Reply
#93
RE: Is the Past Real?
Light cones extend into the future but also into the past.
Reply
#94
RE: Is the Past Real?
(October 16, 2022 at 4:36 pm)scamper Wrote:



Moderator Notice
Post placed in hide tags in case anyone needs to quote this insanely long drivel in a reply.

Boru

If god is all powerful then how could we have free will?
Urbs Antiqua Fuit Studiisque Asperrima Belli

Home
Reply
#95
RE: Is the Past Real?
(October 16, 2022 at 7:44 pm)LadyForCamus Wrote:
(October 16, 2022 at 4:36 pm)scamper Wrote:



Moderator Notice
Post placed in hide tags in case anyone needs to quote this insanely long drivel in a reply.

Boru

Sir, this is a Wendy’s.

Hey! You told me this was Donkey Ford's.
Urbs Antiqua Fuit Studiisque Asperrima Belli

Home
Reply
#96
RE: Is the Past Real?
(October 19, 2022 at 1:49 pm)Tomato Wrote: This cone thing is something I don't understand, but I imagine it's a scientific concept against an omniscient witchy deity as well as human woowoo psychics.

Remember that spacetime is the geometry of ALL point in space and through all time. A location in spacetime is called an event.

The past light cone of an event A is all those events B that can get to A by traveling at the speed of light or slower.

The future light cone of A is all those events B that A could get to by traveling at the speed of light or slower.

Both travels go forward in time.

The point is that since nothing can go faster than light, all causes of an event A have to be in the past light cone of A and all events for which A is a cause have to be in the future light cone of A.
Reply
#97
RE: Is the Past Real?
(October 19, 2022 at 12:56 pm)Angrboda Wrote: I have to wonder if you can have a theory of causality consistent with denial of the past.  I don't think it's necessarily the case that causality as a concept has to survive, but if it's a fiction, it would be one of the more difficult fictions to give up.

In your opinion, is it any more problematic than an eteranalist causality?
<insert profound quote here>
Reply
#98
RE: Is the Past Real?
(October 22, 2022 at 6:49 pm)Neo-Scholastic Wrote:
(October 19, 2022 at 12:56 pm)Angrboda Wrote: I have to wonder if you can have a theory of causality consistent with denial of the past.  I don't think it's necessarily the case that causality as a concept has to survive, but if it's a fiction, it would be one of the more difficult fictions to give up.

In your opinion, is it any more problematic than an eteranalist causality?

I don't really have an opinion. I must confess that I feel a bit out of my depth here.
[Image: extraordinarywoo-sig.jpg]
Reply
#99
RE: Is the Past Real?
(October 22, 2022 at 9:06 pm)Angrboda Wrote:
(October 22, 2022 at 6:49 pm)Neo-Scholastic Wrote: In your opinion, is it any more problematic than an eteranalist causality?

I don't really have an opinion. I must confess that I feel a bit out of my depth here.

NS is proposing the god explanation (again).
Reply
RE: Is the Past Real?
(October 22, 2022 at 11:06 pm)Jehanne Wrote:
(October 22, 2022 at 9:06 pm)Angrboda Wrote: I don't really have an opinion.  I must confess that I feel a bit out of my depth here.

NS is proposing the god explanation (again).
Is he ever not?
"Change was inevitable"


Nemo sicut deus debet esse!

[Image: Canada_Flag.jpg?v=1646203843]



 “No matter what men think, abortion is a fact of life. Women have always had them; they always have and they always will. Are they going to have good ones or bad ones? Will the good ones be reserved for the rich, while the poor women go to quacks?”
–SHIRLEY CHISHOLM


      
Reply



Possibly Related Threads...
Thread Author Replies Views Last Post
  Presentism and Infinite Chain of Past Events GrandizerII 48 11724 December 13, 2017 at 7:37 am
Last Post: Edwardo Piet
  Argument Against an Infinite Past MindForgedManacle 30 9868 September 13, 2013 at 8:35 am
Last Post: Ben Davis
  would you use a time machine to change your past dj-hato 34 9954 April 10, 2013 at 2:57 pm
Last Post: Violet



Users browsing this thread: 1 Guest(s)