this post was submitted on 19 Nov 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

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Time for some trolling. xD

Definitely doing that for Harry Potter books lol, fuck that author (she who shall not be named).

Best let them come up with the idea, then you publish it the next day, and watch the author's reaction:

"Someone has already published a book on the same idea? Nooo wayyy!"

[Insert "U Mad Bro" Trollface Meme]

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[–] 1D10@lemmy.world 22 points 18 hours ago (1 children)

That's kinda why I think time travel is impossible, if it is ever invented someone will go back and invent it sooner, then someone will go back again until eventually it ends up being the first thing ever invented by humans.

[–] katja@lemmy.blahaj.zone 17 points 17 hours ago (3 children)

Maybe time travel requires a receiver to send to? This isn't my idea, but I don't remember who came up with it. I don't believe that's possible either, but that would explain why we haven't seen any travelers yet and still keep time travel a theoretical possibility. You can never travel further back in time than to the invention of the first time machine.

[–] Rhynoplaz@lemmy.world 13 points 17 hours ago* (last edited 17 hours ago)

Plot twist: The first time machine HAS been invented, but the creator thought it was a failure because there was no previous machine to transmit to.

[–] DeathByBigSad@sh.itjust.works 9 points 17 hours ago (2 children)
[–] RebekahWSD@lemmy.world 4 points 17 hours ago

I watched a YouTube video about the plot and showing which timelines were where and it hurt my head lol

[–] katja@lemmy.blahaj.zone 2 points 17 hours ago

Haven't seen it, but it might be the source nevertheless.

[–] Darohan@lemmy.zip 2 points 12 hours ago

There was a theoretical one I saw ages ago that was a giant cylinder rotating in space at close to the speed of light that had this limitation. I remember exactly zero details beyond physically what it was in the phrase "time cone".

Seems like it's probably the Tipler Cylinder