Hillbilly Cosmologist

In General Relativity, spacetime itself is described as a single 4-surface (a four-dimensional manifold with a Lorentzian metric) Using the generalized definition of an n-surface (where an n-dimensional manifold is treated as a single geometric object), how many surfaces does a single four-dimensional pseudo-Riemannian manifold constitute? The answer is 1. The relationship between mean density, surface density, and the radius is ρ = 3σ / r For a manifold with only 1 surface, σ is a constant. If 3σ is a constant, ρ ∝ 1/r What this means is that for a constant surface density, there is a 1/r distribution of matter.

@RedTheRaider @BrianRoemmele I took this photo in my backyard about ten years ago.

@RobinWeep @BrianRoemmele We're surrounded by miracles.

Researchers at MIT created a tiny origami-inspired robot that starts as a flat sheet and transforms itself into a working machine when activated by heat. Made from a heat-responsive polymer combined with rigid panels and small embedded magnets, it can self-fold into shape and then move across surfaces, swim, climb slight slopes, and handle uneven terrain, all without traditional onboard motors.

@fredsoda And that negatively impacts the US the most because we're on top. We have nothing to gain from anything Trump has done since he's been in office. He's seriously the worst president in history, except for maybe Truman.

i’m struggling to come to terms with the fact that the US just blew up the remnants the rules-based international order for nothing

@GaryMarcus You can absolutely use all of those tools and LLMs to learn. But most any craft requires hands on experience to get the job done correctly. Many CEOs have ruined software by not knowing anything about the code.

Don’t use a calculator until you can do the math on your own. Don’t vibe code until you can code – and debug and maintain code – on your own. It’s that simple.

There may not be a way to know how or when it all started, but I know for a fact that spacetime is not expanding. The FLRW metric assumes homogeneity and isotropy. Since mass density is scale-dependent, the metric only represents a single scale. It's not physically realistic. Because of this oversight, there's an enormous amount of gravitational redshift that has been overlooked. At the very very least, there is a severe degeneracy in the expanding framework. But the field is so freaking dogmatic, and there are so many damn crackpots out there saying nonsense, that no one has noticed this degeneracy. In short, Hubble's law can entirely accounted for with gravitational redshift. rho(r)=1/r. The resulting solution to the field equations can also be used to explain many phenomena. It's polycentric (isotropic/observer-dependent), completely relational (no substantivalist nonsense), and has net 0 pressure.

the Big Bang could be a phase transition of hidden sectors not an absolute beginning

@MichaelSLinden Is there some secret law that says all senators and congressmen must support all wars and if they speak out they get killed? That's what it seems like is happening. That, or they're all demons or aliens.

This gentleman is going to go straight from making videos like this to voting for a $200 billion war supplemental.

@DeTocqueville14 Trump sure as hell did a good job picking people this time. I've never seen a more loyal group of liars.

This woman lies for a living

@PressSec This is some North Korea shit.

Americans Agree that Operation Epic Fury Is an Overwhelming Success whitehouse.gov/articles/2026/…

@NotMyOpinionOK @Politicsworld @JessicaTarlov @StephF7504 A large percentage of the US wants regime change in the US. Should China bomb our schools?

@Politicsworld @JessicaTarlov @StephF7504 What a stupid comment. No body asks for war LOL pee brain. But 81% of Iranians want a regime change. But if you think Iran are the moral ones... blowing up random ships and bombings 8 different countries, murdering gays and protesters. You got something wrong in your head.

This is a mess. The goalposts around what “Operation Epic Fury” is going to accomplish are moving constantly to accommodate whoever is in front of the cameras. Trump claiming that we didn’t expect Iran to retaliate doesn’t hold up. Iran warned the UN weeks earlier, and experts flagged the risk before the strikes. You can debate whether the decision to go to war was right or wrong. But the idea that Iran’s response—or threats like closing the Strait of Hormuz—came out of nowhere just isn’t supported by the evidence. And now we’re paying for our hubris.

@LensScientific I love seeing people the doubt the big bang.

If every state of the universe follows from the Big Bang, is “choice” just chaotic motion, or does true randomness enter through quantum mechanics?

@markbeauch59 @ShemekaMichelle I'm a well respected veteran of the USAF.

@RobinWeep @ShemekaMichelle Cowards are destined for servitude. You will never be anything relevant because nobody will ever respect you.

Dear Republicans, this is actually making y’all look bad. The media is gaslighting you into being dismissive and arrogant. This will crush you in November!! People are pissed and the least you could do is try to understand why, even if you do support the war.

@markbeauch59 @ShemekaMichelle Any excuse to kill humans. You're like another species.

@RobinWeep @ShemekaMichelle Un-winnable is how the World got here in the first place. Iran has influence through terror networks all paid for by selling oil. The US is ending a war that started 47 years ago. We now have a President with the balls to fight to win.

@markbeauch59 @ShemekaMichelle Did you respond to the right person?? I'm not complaining about "how hard I have it." I'm complaining that Trump started an unwinnable war that will result in the deaths of tons of human beings.

@RobinWeep @ShemekaMichelle Your generation only exists because of us you ungrateful bastards. You live in luxury with everything easily accessible. You drive up to get your $7 coffee, have a $1200 phone and complain about how hard you have it.

@markbeauch59 @ShemekaMichelle It's astonishing how evil your generation is.

@RobinWeep @ShemekaMichelle Trump did not bomb a school no matter how many times you say it. The Marines are going to secure the straight of Hormuz.

@skdh Substantivalism is literally the problem.

he's entirely right of course. even if you think he is wrong, at the very least physicists should think about why everyone else agrees they've lost the plot.

@markbeauch59 @ShemekaMichelle It's not a game. Trump bombed a school. He's about to send marines into a death trap. This shit is real.

@RobinWeep @ShemekaMichelle Tucker is going to jail

@FurkanGozukara They renamed the DOD to the Department of War to sound tough and badass.

"Defensive strikes?" The US is loading B-52s—famous for carpet bombing Vietnam—and B-1s with 2,000lb cruise missiles in the UK. There is absolutely nothing defensive about this. It is a massive offensive operation.

That gives them more credibility then. Trump is an absolutely disaster. He is now simultaneously claiming that he has won the war, is currently winning the war, needs help to win the war, and needs no help to win the war. All to destroy the nuclear program he claims to have already destroyed last year. A rate of $1+ billion dollars a day.

@ShemekaMichelle Tucker and Megan have never been Trump supporters. They have both hated him in the past. (Verbally)

@NickJFuentes Imagine what we could do with $200 billion. That's a dozen or so nuclear power plants.

The GOP told us that a $17 billion border wall was too expensive and that Mass Deportations were too unpopular. But $200 billion for a regime change war in Iran that has 27% approval is absolutely necessary because Israel said so. ISRAEL FIRST MEANS AMERICA LAST.

@peterdaou I thought the democrats were good at gaslighting but Trump has taken it an entirely new frontier.

The past two years have given new meaning to the term "gaslighting."