this post was submitted on 21 Apr 2025
460 points (98.1% liked)
Showerthoughts
33800 readers
981 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 most popular seem to be lighthearted clever little truths, hidden in daily life.
Here are some examples to inspire your own showerthoughts:
- Both “200” and “160” are 2 minutes in microwave math
- When you’re a kid, you don’t realize you’re also watching your mom and dad grow up.
- More dreams have been destroyed by alarm clocks than anything else
Rules
- All posts must be showerthoughts
- The entire showerthought must be in the title
- 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
- Posts must be original/unique
- 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.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I always giggle at the idea that aliens would come here in some super advanced spaceship.
Look at the spacecraft we've managed to land on other celestial bodies. They're basically the lightest, sketchiest, life support boxes with a rocket motor that we can manage to get to the destination. It would be reasonable to assume that any alien out there reaching earth for the first time would either send a rover, or it would be the jankiest craft that could just barely get here.
That's assuming they came here first :)
Also, assuming one of the 60 horrible things happening right now doesn't prove the Fermi paradox.
We've been looking all over for signs of life. Earth screams "there is life here!"
We've only been broadcasting for 120 years, which is ~120 light-years away. Someone within that bubble needs to be technologically advanced enough to have been listening for the past 120 years.
Also, our average transmissions are pretty weak. If we really want to get noticed, We should have been firing intense lasers at them.
A persistent assumption about advanced interstellar travel is that engine efficiency is monumentally better to the point that the "tyrrany of the rocket equation" is no longer a factor, and extra mass can be carried without absolutely exploding your fuel requirements into absurdity.
If adding 10kg of payload didn't mean also potentially many times more mass of propellant we'd be sending up more robust spacecraft, no question.
Rocket equation notwithstanding, there is the tyranny of development. Electric motors, rocket engines, ion thrusters... All of these locomotive technologies went through iterations. Even if alien scientist invented a warp drive capable of carrying an infinite amount of mass an infinite distance with no energy, there would still be a development process to implement and integrate that drive into a spaceship.
Technological progress, or the accumulation of knowledge does not happen overnight, it's built layer by layer.