this post was submitted on 07 Jul 2025
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Showerthoughts

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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 most popular seem to be lighthearted clever little truths, hidden in daily life.

Here are some examples to inspire your own showerthoughts:

Rules

  1. All posts must be showerthoughts
  2. The entire showerthought must be in the title
  3. No politics
    • If your topic is in a grey area, please phrase it to emphasize the fascinating aspects, not the dramatic aspects. You can do this by avoiding overly politicized terms such as "capitalism" and "communism". If you must make comparisons, you can say something is different without saying something is better/worse.
    • A good place for politics is c/politicaldiscussion
  4. Posts must be original/unique
  5. Adhere to Lemmy's Code of Conduct and the TOS

If you made it this far, showerthoughts is accepting new mods. This community is generally tame so its not a lot of work, but having a few more mods would help reports get addressed a little sooner.

Whats it like to be a mod? Reports just show up as messages in your Lemmy inbox, and if a different mod has already addressed the report, the message goes away and you never worry about it.

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[–] [email protected] 6 points 13 hours ago

Alternatively teleportation doesn't work unless you also have time travel

[–] [email protected] 9 points 19 hours ago (1 children)

Space is full of time travelers that forgot to include the Zed access into their calculations.

[–] [email protected] 4 points 17 hours ago (1 children)

Zed access sounds a lot cooler and more scifi than z axis.

[–] [email protected] 2 points 5 hours ago

Hahahahaha!!! Oh, man. Speech to text did not do me well earlier hahahahah

[–] [email protected] 16 points 21 hours ago (1 children)

In a different position relative to what?

[–] [email protected] 3 points 19 hours ago (1 children)
[–] [email protected] 4 points 18 hours ago (1 children)

What point in space is the reference, where other things are placed relative to?

[–] [email protected] 3 points 18 hours ago

Any point you want, but likely the great attractor.

[–] [email protected] 8 points 1 day ago* (last edited 1 day ago) (2 children)

Teleportation or building your time machine into a spaceship so you can land.

[–] [email protected] 3 points 19 hours ago* (last edited 19 hours ago)

Never go in against an Australian when death is on the line!

One of the best characters

Edit: autocorrect

[–] [email protected] 6 points 21 hours ago* (last edited 21 hours ago)

Or stealing someone else's spaceship time machine

[–] [email protected] 20 points 1 day ago* (last edited 1 day ago) (1 children)

Space and time are the same thing. Spacetime. Time travel would necessarily also by teleportation if you are traveling instantaneously through spacetime. Unless of course your travel is continuous like it is currently for all of us, just sped up, slowed down or reversed.

Also there is no objective point of reference for location in the universe, only relative points of reference. In other words, you are always some distance in some direction from some thing. But you never have objective stable coordinates relative to the universe itself. There is no "center" or other fixed point of the universe. So the earth is moving, yes, but only relative to other independent celestial bodies. And those bodies are moving, too, relative to other bodies. Their movement is always relative to a non-absolute frame of reference. No movement is objective to the universe, it's all relative.

So it would be illogical to expect the earth to have moved X miles away in Y direction if you teleported one second into the past/future because that would presuppose that your location was objective and absolute in the universe at the point of time traveling and the earth moved relative to your absolute location. It would break known physics if that were the case, as much as time travel itself would.

[–] [email protected] 7 points 1 day ago

🤔

If only there was some kind of theory that could explain relativity.

Especially in large celestial objects.

[–] [email protected] 7 points 1 day ago* (last edited 1 day ago)

That's correct. But if you've figured out how to travel through time, traveling through space should be easy.

Also, be sure to wear a hazard suit so you don't die from any ancient/future diseases your body has no protection from.

[–] [email protected] 3 points 1 day ago* (last edited 1 day ago) (1 children)

Maybe if you timed it juuuuuust right you could land somewhere on the planet as it orbits the sun and comes back to the same position once a decade or century or whatever? I mean I guess it depends on how you determine absolute location in the universe. Is that even possible with the universe constantly expanding?

[–] [email protected] 5 points 1 day ago (1 children)

Nope, not possible. The solar system itself is moving as is the galaxy... it's useful to think of Earth's orbit as spiraling around the sun in the direction our star is traveling. So 1 orbit later we have not come to the same location.

[–] [email protected] 3 points 1 day ago* (last edited 1 day ago) (1 children)

But moving relative to what?

[–] [email protected] 3 points 1 day ago* (last edited 1 day ago) (1 children)

Everything else.

Galactocentrism was established in 1925, which realised that our solar system is not near the center of the Milky Way. So, we are moving relative to the center of our galaxy.

In 1929, evidence was found that everything else is moving away from us. So we are moving relative to everything else.

In 1931, the Big Bang theory started superceding Galactocentrism, which was an acentrist model of the universe (where there is no center).

[–] [email protected] 2 points 21 hours ago (1 children)

But what frame of reference?

[–] [email protected] 2 points 20 hours ago

Everything else. Or anything else, if you select a single quark (presuming we don't split a quark).

If everything is moving away from us, then everything is moving away from everything else.
It's just that some things are moving away from us faster than they are moving away from other things

[–] [email protected] 12 points 1 day ago

Tell me you didn’t pay attention in Spatial Distortion as Applied to Time Dilation class without telling me you didn’t pay attention in Spatial Distortion as Applied to Time Dilation class.

[–] [email protected] 2 points 1 day ago

Being sci-fi it can be explained with ^Q^ ~u~ ^a^ ~n~ ^t^ ~u~ ^m^ ^E^ ~n~ ^t^ ~a~ ^n^ ~g~ ^l^ ~e~ ^m^ ~e~ ^n^ ~t~

[–] [email protected] 39 points 1 day ago

I get that people just refer to them as time machines, but they're actually space-time vehicles.

Before your first journey, you calibrate it to a reference point (mine already had Earth mapped out, with a gravity well depth monitor as a fail-safe) so that you lock your target coordinates in space and time.

But no, it's not teleportation. You're still just travelling to your destination, you just get there as quick as you want and without the need to be disintegrated.

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