this post was submitted on 23 Apr 2025
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[–] [email protected] 2 points 7 hours ago
[–] [email protected] 11 points 19 hours ago

I KNEW YOU THOUGHT I WAS GOOD DOG!!!

[–] [email protected] 30 points 1 day ago (2 children)

I studied general relativity last year and ACKCHYUALLY...

[–] sus 5 points 8 hours ago (1 children)

The earth is rotating, which is a non-inertial reference frame. Fido simply uses its own reference frame, which following the command is now inertial. The result is that Fido is no longer affected by gravity, and slowly floats away just as in the comic

[–] [email protected] 2 points 8 hours ago

good boy fido

[–] [email protected] 7 points 20 hours ago (1 children)

Pfft! I read about it on a box of cereal 5 minutes ago and think I've come to some novel conclusions.

[–] [email protected] 4 points 12 hours ago (1 children)

that's a rad box of cereal

[–] [email protected] 4 points 12 hours ago

I had to switch from existential-os. That box was making me sad.

[–] [email protected] 215 points 1 day ago (6 children)

"but Stephen, there are no fixed points in space. Space is relative, meaning you can only define positions relative to other things. You demand the fundamentally physically impossible of me, Stephen."

[–] [email protected] 1 points 11 hours ago

We're currently unaware of any fixed coordinate system for space itself. There may be one, we have no basis of reference for it.

[–] [email protected] 47 points 1 day ago (4 children)

Ah, but using the cosmic microwave background we actually can determine a universal coordinate system to fix a point in space.

[–] [email protected] 19 points 1 day ago

that sounds like you're relating your position to something else 😏

[–] [email protected] 55 points 1 day ago (3 children)

cosmic microwave

Oh, so that's why Earth is spinning!

[–] [email protected] 2 points 6 hours ago

The centre is hot while the outside is cold - that's how we know it's true

[–] [email protected] 3 points 20 hours ago

Life is naught but a warm burrito on the rotating microwave plate of Earth.

[–] [email protected] 5 points 1 day ago

Yeah, and some asshole thought it'd be cool to put fish in it.

[–] [email protected] 40 points 1 day ago (4 children)

But only related to the cosmic microwave background, which, while more universal than most other reference frames, is ultimately still arbitrary

[–] gbuttersnaps 6 points 1 day ago (1 children)

North is arbitrary as well, that doesn't mean you can't use it for spatial referencing.

[–] [email protected] 8 points 1 day ago

Yes, for practical purposes, absolutely! But you're always just aligning with something else moving through space, not space itself

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[–] [email protected] 8 points 1 day ago (8 children)

Why cosmic microwave background radiation? Is that any less arbitrary than e.g. the sun?

[–] [email protected] 3 points 1 day ago (2 children)

i mean if we were to communicate with aliens in another galaxy it would be the "least arbitrary" one

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[–] [email protected] 17 points 1 day ago (22 children)

Is it tho? Assuming there was a big bang, isnt it fair to call that origin point 0 0 0 in 3D space? Subjective space is relative, but that doesnt mean space itself is relative.

[–] [email protected] 42 points 1 day ago (5 children)

the big bang wasn't an explosion from a point, it was an explosion of a point in space. That one point is still expanding to this day. Everything is moving away from everything else, which wouldn't be the case in an "ordinary" explosion. We are all still in that one point, it's just that that point has expanded. The center of the universe is, in the literal sense of the word "literally", everywhere.

[–] [email protected] 12 points 1 day ago (1 children)

Like one of those pills you put in water and it turns into a sponge TRex!

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[–] [email protected] 12 points 1 day ago (2 children)

I am the center of the universe. Got it.

[–] [email protected] 3 points 23 hours ago (1 children)

Wait until you hear about quantum immortality...

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

Being the center of the universe, I already assumed I was immortal.

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[–] [email protected] 54 points 1 day ago* (last edited 1 day ago) (4 children)

that's not how the big bang works, the whole thing about the big bang is that it was a singularity containing all of space in a single point.
The standard analog is to take a small balloon with dots painted on it, then inflating it. The surface of the balloon is spacetime, and as it shows there is no origin, everything just gets more distant from everything else.

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

General relativity is for nerds (this is a joke).

[–] [email protected] 9 points 1 day ago

Does anyone know the artist?

[–] [email protected] 5 points 1 day ago
[–] [email protected] 17 points 1 day ago

because fixed points in space (stationary reference frames) fall inwards into gravity wells as time progresses, Fido, would need to burrow into the center of the earth. Fido should shoot into space like that if told to stay at a fixed point relative to the cosmic microwave background

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

This makes me sad.

Also, it's a little inaccurate as the dog would be moving at hundreds of thousands of kilometers per hour, either burning up in the Earth's atmosphere or plowing through its surface. Also, I don't think dogs have the ability to do this, so there's that.

[–] [email protected] 11 points 1 day ago (1 children)

We have never truly tested the limits of dogs. Only the limits of what THEY think we want.

[–] [email protected] 3 points 1 day ago

What they want is to be with us, thus they would never use such a power even if they had it.

[–] [email protected] 14 points 1 day ago

Which frame of reference though? Also time is a dimension should the dog also freeze in time?

[–] [email protected] 19 points 1 day ago

Good boy. Maybe too good.

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