Timeline for Can there be a theoretical synchronised ‘now’ moment at all points across the universe?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 24, 2020 at 8:31 | history | edited | Guy Inchbald | CC BY-SA 4.0 |
added 30 characters in body
|
| Jul 24, 2020 at 4:59 | history | edited | Guy Inchbald | CC BY-SA 4.0 |
added 1162 characters in body
|
| Jul 24, 2020 at 4:43 | comment | added | Guy Inchbald | @Harvey Your question "if one could stop time in an instance across the universe, would that not represent a common now moment?" expresses a tautology, it is self-true by definition, it asks only "if X were true, would X be true?" No, X is not true, so no, it would not be true. You are now asking "Why isn't it true?" which is a rather different (and more sensible) question. The actual speed of light is a red herring, what is significant is its constancy for all observers - it is the implications of this which I tried to summarise. | |
| Jul 23, 2020 at 23:44 | comment | added | Harvey | Hello Guy, thank you for your response and yes my condition of the now moment does presuppose a common instance in time. I am looking for someone to explain Why this intuitive perspective is not feasible. It seems that most often the counter position is based on the fact that it is not possible to tie down synchronised now moments in time. But that does not rule out the concept of a now moment, surely our imagination can extend to a thought experiment where the common now moment exists. If this is not the case please explain why. | |
| Jul 21, 2020 at 6:41 | history | answered | Guy Inchbald | CC BY-SA 4.0 |