this post was submitted on 10 Apr 2024
253 points (91.2% liked)

Showerthoughts

29723 readers
624 users here now

A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.

Rules

  1. All posts must be showerthoughts
  2. The entire showerthought must be in the title
  3. Avoid politics
    1. NEW RULE as of 5 Nov 2024, trying it out
    2. Political posts often end up being circle jerks (not offering unique perspective) or enflaming (too much work for mods).
    3. Try c/politicaldiscussion, volunteer as a mod here, or start your own community.
  4. Posts must be original/unique
  5. Adhere to Lemmy's Code of Conduct-----

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
[email protected]
253
The reason why we never meet time travelers is because our civilization ends before the technology can come to fruition. (lemmy.world)
submitted 7 months ago by [email protected] to c/[email protected]
101 comments fedilink hide all child comments
 

Sort of similar to the Great Filter theory, but applied to time travel technology.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 0 points 7 months ago (1 children)

It is true, don't waste my time.

[–] [email protected] 1 points 7 months ago (1 children)

"it's a fun fiction which is always contradictory in some way" <-- that is not true.

General relativity allows for closed time-like curves and the existence of those means time travel isn't necessarily impossible, and if that is the case, it has to abide by the Novikov self-consistency principle.

Willfull ignorance wastes only your own time.

[–] [email protected] 0 points 7 months ago (1 children)

In that case time travel would be meaningless regardless, impossible to prove, and doesn't matter.

[–] [email protected] 0 points 7 months ago

Dumbledore disagrees. The type of timetravel that happens in HP: Prisoner of Azkaban is self-consistent. Same as with Rick's timetravel in the snake episode of Rick & Morty (specifically excluding the snake time travel, which is an example of non-consistency, leading to endless paradoxes).

Now ofc having a timeturner and/or a timemachine would be the impossible part there, but again, CTC's are technically allowed by GR.