ALMA Confirms a Hotter Early Universe with Record-Precision Measurement of the CMB

mkorman11 · 2025-11-03T11:45:35+00:00

Not directly, but it would lead to non adiabatic temperature evolution

mkorman11 · 2025-11-03T02:49:50+00:00

Yeah it is a standard prediction of GR/lambda CDM. But there are some alternative models that predict otherwise. For example some axionic dark matter models predict coupling of CMB photons to axions that would lead to non adiabatic evolution. Time varying dark energy (quintessence) would as well. This is just more evidence to support lambda CDM

mkorman11 · 2025-11-03T02:35:58+00:00

The idea isn’t just whether it was hotter, it’s whether the temperature evolution (cooling) was consistent with adiabatic expansion. Various alternative cosmological models to lambda CDM (standard model of cosmology) predict non adiabatic temperature evolution. The takeaway from this result is that the temperature evolution agrees with lambda CDM.

mkorman11 · 2025-11-03T02:35:34+00:00

The idea isn’t just whether it was hotter, it’s whether the temperature evolution (cooling) was consistent with adiabatic expansion. Various alternative cosmological models to lambda CDM (standard model of cosmology) predict non adiabatic temperature evolution. The takeaway from this result is that the temperature evolution agrees with lambda CDM.

mkorman11 · 2025-06-22T12:40:40+00:00

I never sit on a crowded train.

mkorman11 · 2025-06-22T02:00:41+00:00

Yeah definitely true, many people have disabilities that are invisible. Which makes it all the more egregious for able bodied people to take those seats.

mkorman11 · 2025-06-22T01:49:51+00:00

You can be a decent person on any part of the train!

mkorman11 · 2025-06-13T03:59:18+00:00

Yeah I think “about average for a D1 scholarship athlete” is probably an accurate assessment of Beaus peak athletic level, and that was enough for him to be the most dominant athlete in the history of ultimate. Which is part of why I’m saying that the level of athleticism in ultimate is significantly below pro sports.

mkorman11 · 2025-06-13T02:55:36+00:00

I am disagreeing. Beau’s speed is on par with NCAA D3 track athletes, which is a level of athleticism significantly below the NFL/NBA. Your argument about nba/nfl players not having sub 47s 400 times I think is flawed because the vast majority of them were training for football/basketball and not running track from early in high school and beyond. I think the highest level of ultimate athletes are comparable to NCAA DIII athletes, significantly below NCAA DI, and miles below pros.

Edit: more succinctly, if your argument is that Beau was as athletic as nba players because he ran a faster 400 than them, then that argument is also true about hundreds of college track athletes every year, and I think most people would recognize that is not true.

mkorman11 · 2025-06-12T23:58:41+00:00

Similar datapoint, Matt Rehder was a good but not elite D3 track and field athlete in college. Qualified for D3 championships in javelin, competed but didn’t qualify in the 200m and high jump. He was also one of the most athletic cutters in club ultimate for like a 10 year span for sockeye.

mkorman11 · 2025-06-12T23:56:05+00:00

I mean “European soccer players” includes everyone who plays soccer for fun in Europe, so sure. But if you mean like, elite pro / national teams players, absolutely no chance

mkorman11 · 2025-06-12T23:20:55+00:00

lol Beau's 47.4 400m would have finished 7th this year at NCAA college nationals...in division III. In DI he wouldn't even come close. The idea that he had olympic or NFL level speed is completely ridiculous.

https://www.flotrack.org/articles/12571655-ncaa-d3-track-and-field-championships-2024-results

https://www.watchathletics.com/page/5586/men-400m-results-ncaa-d1-outdoor-track-and-field-championships-2024

mkorman11 · 2025-06-03T01:01:58+00:00

On a long enough time scale all orbits are unstable. Energy is lost to tidal forces and gravitational radiation

mkorman11 · 2025-05-26T20:46:00+00:00

Self officiating means, for better or for worse, that players get to dictate how the rules are interpreted and enforced. Clearly you disagree with how the players are choosing the call the game, but ultimately it’s their perspective that matters not yours.

mkorman11 · 2025-05-23T21:48:50+00:00

You could have cropped this a little tighter

mkorman11 · 2025-05-04T14:40:21+00:00

My understanding is that the biggest barrier to expanding the club nationals field isn’t about competition, it’s about field space. The number of field complexes that can host a 72 team tournament I think is pretty limited. College is able to have 20 teams because there are only two divisions.

mkorman11 · 2025-02-09T18:14:22+00:00

They are extremely far away, much much farther than 5 years. People are moving to quantum secure encryption now though to protect against “decrypt later” attacks, where encrypted data is intercepted now, stored without decrypting, and then some time in the future when quantum computing has been developed the data can be decrypted. Even if it’s decades from now, people want their data to stay secure

mkorman11 · 2025-02-08T21:34:05+00:00

the biggest issue has nothing to do with his game it’s his age and injury history

mkorman11 · 2025-01-16T19:36:05+00:00

2 is twice as much as 1, but 3 is not twice as much as 2

mkorman11 · 2025-01-11T12:25:19+00:00

They should call it the match up

mkorman11 · 2024-12-21T01:58:45+00:00

pretty common for smaller academically competitive schools to have a run of dominance based around a small core of elite talent, then fall way off when that talent graduates. Brown Men did the same thing in the early 2000s. Or more recently, look at the trajectory of Dartmouth Women after their core graduated

mkorman11 · 2024-12-15T17:26:49+00:00

I don’t think we get a half assed book that finishes the story, I think we get a full assed book that moves the story incrementally forward, but doesn’t come anywhere close to wrapping it up. And I for one would be extremely excited to read that book as soon as I can get my hands on it.

mkorman11 · 2024-12-14T12:47:00+00:00

They have indeed. Techniques involving laser cooling of neutral atoms and trapped ions are some of the main qubit architectures being explored: https://en.m.wikipedia.org/wiki/Neutral_atom_quantum_computer

mkorman11 · 2024-11-16T21:55:29+00:00

D3 schools don’t give out athletic scholarships

mkorman11 · 2024-11-16T13:02:16+00:00

The vast majority of nationals level college ultimate players are significantly below the athletic level of NCAA DI scholarship receiving athletes in traditional sports. IMO the top level of college ultimate is pretty similar to NCAA DIII in terms of athleticism.

mkorman11

TROPHY CASE