Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > sci.physics.relativity > #593068 > unrolled thread
| Started by | The Starmaker <starmaker@ix.netcom.com> |
|---|---|
| First post | 2022-10-07 22:50 -0700 |
| Last post | 2022-10-10 09:47 +0200 |
| Articles | 4 — 4 participants |
Back to article view | Back to sci.physics.relativity
back to the future... The Starmaker <starmaker@ix.netcom.com> - 2022-10-07 22:50 -0700
Re: back to the future... "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-10-08 12:36 -0700
Re: back to the future... JanPB <filmart@gmail.com> - 2022-10-08 14:49 -0700
Re: back to the future... Thomas Heger <ttt_heg@web.de> - 2022-10-10 09:47 +0200
| From | The Starmaker <starmaker@ix.netcom.com> |
|---|---|
| Date | 2022-10-07 22:50 -0700 |
| Subject | back to the future... |
| Message-ID | <63410F91.1699@ix.netcom.com> |
Can you go back in time and kill your paresnts before you were born? -- The Starmaker -- To question the unquestionable, ask the unaskable, to think the unthinkable, mention the unmentionable, say the unsayable, and challenge the unchallengeable.
[toc] | [next] | [standalone]
| From | "mitchr...@gmail.com" <mitchrae3323@gmail.com> |
|---|---|
| Date | 2022-10-08 12:36 -0700 |
| Message-ID | <1647ecd0-43cd-449b-bd0d-3b84518de763n@googlegroups.com> |
| In reply to | #593068 |
On Friday, October 7, 2022 at 10:49:51 PM UTC-7, The Starmaker wrote: > Can you go back in time and kill your paresnts before you were born? > > -- > The Starmaker -- To question the unquestionable, ask the unaskable, > to think the unthinkable, mention the unmentionable, say the unsayable, > and challenge > the unchallengeable. Now only takes us into the future even in slow time order...
[toc] | [prev] | [next] | [standalone]
| From | JanPB <filmart@gmail.com> |
|---|---|
| Date | 2022-10-08 14:49 -0700 |
| Message-ID | <952da575-a35b-4aef-b50b-ea5d8f4298b8n@googlegroups.com> |
| In reply to | #593068 |
On Friday, October 7, 2022 at 10:49:51 PM UTC-7, The Starmaker wrote: > Can you go back in time and kill your paresnts before you were born? Not in classic GR, not even with the Carter time machine in Kerr geometry. That's because classic GR is fully deterministic and spacetime is fixed. So the event of youir birth is just there, unchangeable. IOW, the problem is that there is no free will in such setups, events cannot be "redone". -- Jan
[toc] | [prev] | [next] | [standalone]
| From | Thomas Heger <ttt_heg@web.de> |
|---|---|
| Date | 2022-10-10 09:47 +0200 |
| Message-ID | <jqi10sFaho5U1@mid.individual.net> |
| In reply to | #593068 |
Am 08.10.2022 um 07:50 schrieb The Starmaker: > Can you go back in time and kill your paresnts before you were born? > I have heard, that you can kill your parents (supposed you own a time machine), but this would not kill you. If you travel back in time, you will not reach the same past from which you came, but kind of 'parallel universe' in which you havn't been born. Actually born there was your local twin. This twin would loose his parents, but not you, hence you could live on, while your twin would not. The idea is (as far as I remember) called 'Bifurcation'. These are points, where timelines split into different worlds, equipped with several independent copies of yourself. TH
[toc] | [prev] | [standalone]
Back to top | Article view | sci.physics.relativity
csiph-web