Showerthoughts

29325 readers

1 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. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.

Rules

All posts must be showerthoughts
The entire showerthought must be in the title
Posts must be original/unique
Be good to others - no bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia
Adhere to Lemmy's Code of Conduct

founded 1 year ago

MODERATORS

[email protected]

254

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]

99 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] 29 points 7 months ago (2 children)

Pretty sure there is no absolute universal position, everything in the universe being in motion relative to everything else as the universe expands, but that does not disprove your point anyways.

[–] [email protected] 18 points 7 months ago (1 children)

The reason it doesn’t disprove it is because the assumption “time travel works” is really just saying, if we ignore some basic rules of physics, what happens to what’s left? It’s a nonesense premise to debate what is basically nothing more than science fiction.

Could the rules we know about the universe be wrong? Absolutely! But discovering those new rules is what will answer that question. Till then, we might as well try and say Harry Potter is just quantum mechanics.

[–] [email protected] 3 points 7 months ago

Look up Dr. Ronald L Mallett. This astrophysicist has some interesting takes on practical time travel. There's a great interview with him by Fraser Cain of Universe Today.

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

You can use the cosmic microwave background as a universal reference frame. Relative to that we move at about 370 km/s, depending on the time of the year.

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

Now I'm hurting my head by thinking about traveling faster than 370 km/s in the opposite direction to Earth...

[–] [email protected] 4 points 7 months ago

For reference: Voyager 1 is traveling at 17 km/s away from the sun. The Parker Solar Probe should reach 191 km/s but will be flying towards the sun.