What is a Scientific Fact, that while you know it has been proven true, still seems impossible?
@RickiTarr that the universe exists at all
@MishaVanMollusq When I started learning how galaxies and planets were formed, it was like like WTF?!
@MishaVanMollusq @RickiTarr
Once you learn about the Penrose number you kinda stop believing that it's real at all. It's absolutely insane.
@Basmitharts @MishaVanMollusq @RickiTarr
Okay, I googled it.
Still don't know what it is.
Our did you mean the sheer number of things Roger Penrose is known for.
From Wikipedia:
List of contributions
Moore–Penrose inverse
Twistor theory
Spin network
Abstract index notation
Black hole bomb
Geometry of spacetime
Cosmic censorship
Illumination problem
Weyl curvature hypothesis
Penrose inequalities
Penrose interpretation of quantum mechanics
Diósi–Penrose model
Newman–Penrose formalism
..
@Basmitharts @MishaVanMollusq @RickiTarr
Newman–Penrose formalism
GHP formalism
Penrose diagram
Penrose inequality
Penrose process
Penrose tiling
Penrose triangle
Penrose stairs
Penrose–Hawking singularity theorems
Penrose graphical notation
Penrose transform
Penrose–Terrell effect
pp-wave spacetime
Schrƶdinger–Newton equations
Orch-OR/Penrose–Lucas argument
FELIX experiment
Trapped surface
Andromeda paradox
Conformal cyclic cosmology
@MennoWolff @MishaVanMollusq @RickiTarr
Definitely, but TL-DR it's essentially is the measurement of how ordered the universe had to be at the beginning to evolve into what we see today.
Comes out to a 1 in 10 to the power of 10^123 chance.
@MishaVanMollusq @Basmitharts @MennoWolff @RickiTarr I just felt my brain nope out of that

@MishaVanMollusq @Basmitharts @MennoWolff @RickiTarr And that's another thing --

That a brain can develop squick points, and mental models, and artificially impose limits on itself. Being "inside" a brain can feel so limitless, but isn't...but then again, some of the limits are fake and self-imposed.

Our brains don't seem to cope well with the limitless. So it makes up limitations, and then tells itself that it is, in fact, limitless. All while pretending that it isn't blocking out information.

@Basmitharts @MennoWolff @MishaVanMollusq @RickiTarr
Huge odds, but if you don't have time yet, surely you can crack off 10^10^123 universes before breakfast. If there's a way to make universes (which there obviously is) but time doesn't exist yet, just keep banging them out until one works.
@MennoWolff @Basmitharts @MishaVanMollusq @RickiTarr I thought this might have been a play on the original meaning of "google".
@hosford42 @Basmitharts @MishaVanMollusq @RickiTarr
TIL that you're off by only 10^23.
Avogadro's number, roughly 😃
@MennoWolff @Basmitharts @MishaVanMollusq @RickiTarr It's a sign! One that reads "Numerology". :D

@Basmitharts @MishaVanMollusq @RickiTarr How real is any number, when you really get down to it? (My god, it's full of puns! Sorry, distracted myself from my point for a moment there. Ahem...)

Our entire number system is really just a model with properties that make it conveniently reusable in a lot of different contexts. The really outlandish numbers like this are exactly the sort of thing we should expect when we let a power user play around with it.

Reality is vast and profound, and our system for describing it can be a little inadequate sometimes. But it's not the number that's outlandish. The real outlandishness is in the universe we are trying to describe with it.

@RickiTarr Heat pumps can heat your home by taking heat from outdoors even when it's colder outside than in your home.

@statsguy @RickiTarr

I wanna mansplain this so bad šŸ˜‚

@elverkonge @statsguy @RickiTarr

Same. I used to be an HVAC guy in a former life. *eye twitch*

@statsguy @RickiTarr FWIW, compressors are fascinating machines, if you ever feel like an engineering wiki-binge.
@statsguy @RickiTarr Heat pumps made a lot more sense to me when someone said it’s like the coils on a refrigerator, but the refrigerator is inside out.
@samhainnight @RickiTarr Well an inside-out refrigerator definitely sounds like magic to me
@statsguy @RickiTarr
They are basically a fridge with the door open to the outside world.

@RickiTarr There's a species of jellyfish that is "biologically immortalā€.. in the absence of predation or disease, they can basically regenerate forever.

https://en.wikipedia.org/wiki/Turritopsis_dohrnii

Turritopsis dohrnii - Wikipedia

@FlagrantError YES! I read about that a few months ago, wow!

@FlagrantError @RickiTarr there's also a human cancer that's been alive and growing since the 1950s that's immortal.

https://en.m.wikipedia.org/wiki/Henrietta_Lacks

Henrietta Lacks - Wikipedia

@WagesOf
I get a little upset every time I think about the ethical concerns around this.
@RickiTarr
@WagesOf Just like Keith Richards, who has been alive and growing since the 1940s and is immortal!

@FlagrantError @RickiTarr
@RickiTarr that bread makes you fat.
@WagesOf I mean, anything can if you try hard enough lol
@RickiTarr @WagesOf dunno, you'd struggle a bit with arsenic
@afewbugs @RickiTarr @WagesOf There’s arsenic in applesauce, from the apple seeds
@RickiTarr That you won't get a fatal electric shock as long as there is no ground contact.
@Pistolenkind Not technically true though.
@snaprails What's not true about that? The circuit is therefore not closed.
@Pistolenkind A circuit doesn't need to be to ground.
Try this experiment:
1. get a rubber mat to insulate you from ground
2. Find a nice big battery - there are plenty about in EVs or off-grid power storage.
3. hold the + terminal with one hand and the - terminal with the other.
4. come back and tell us how you got on ;-)

@snaprails No, a circuit doesn't necessarily need the ground, but you need the ground to form a circuit yourself. Of course, you can still be part of an existing circuit. That's a difference.

No need to be a dick. Winking smiley.

@Pistolenkind @RickiTarr
With the exception that if you touch a high-voltage conductor in two places far enough apart, enough current could pass through your heart to stop it. It only takes 240 milliamps.
@RickiTarr That 1 dietary calorie = 1 kcal
@James @RickiTarr 1 cc of gasoline = 7.6 calories
@RickiTarr
That humans šŸ§‘ā€šŸ¤ā€šŸ§‘ have brains 🧠

@RickiTarr I’m going to put my pedantic hat on, and say nobody argues about facts (at least nobody you want to spend any time with).
But we do love arguing about what they mean, and if that meaning seems impossible, you need a better imagination!

Before Archimedes starting shouting Eureka, I suspect he said wtf?

@BashStKid BUT YOU DIDN'T ANSWER THE QUESTION LOL

@RickiTarr You’ve seen through my cunning plan, drat!

Ok, then;

- so all the calcium in my bones was created in a supernova?

- so this worm is probably an ancestor of mine?

- so quantum algorithms are mostly solved in parallel universes?

- so my retina is stuck *behind* all the blood vessels?

- so my memory is easy to trick, we’re all prone to bias, and I’m not an independent observer with perfect recall?

Especially the last one, I think.

@BashStKid Yep that whole, We are rewriting a new memory every time we think of an old memory thing, always gets me. We are a collection of fables
@RickiTarr @BashStKid
Children of the moments that came before..
@BashStKid @RickiTarr Some people can actually see the blood vessels sometimes.
@hosford42 @RickiTarr
Shame we can’t all be as well-designed as the octopus. šŸ™
@BashStKid @RickiTarr They have a really short expiration date, so there is that.