Yeah, it’s quieter so there’s fewer overall responses even in “popular” posts, but it doesn’t feel like anything gets ignored. If a post is interesting, you’ll get at least a few replies even if it takes a few days.

That part is kinda nice - the lower turnover on the “front page” means you’ll have people reading and commenting on discussions for days. If you reply to a 1-day old post on Reddit the only person who might see/reply to you is the person you replied to.

I’ve gotta hand it to you, that’s a good comparison

The bar patron is a classic optical illusion.

There absolutely are, but I’m not super familiar with all of the consequences of majorana neutrinos. /u/drail@fedia.io might be able to provide a better answer. My background is experimental nuclear physics, so I’m familiar a lot of experiments searching for beyond the standard model physics, but less so with the theory motivation.

One consequence of neutrinos being their own antiparticles is that it breaks lepton number conservation. This also breaks chiral symmetry, since all neutrinos are right-handed and anti-neutrinos are left-handed. This observation would also imply that neutrinos have mass - which is assumed but would be a really big deal to prove.

Yeah it’s one of those terms that’s unfortunately been co-opted for another definition. Definitely made some of my google searches in grad school feel icky… The physics terminology came first though!

Despite space being “empty” there’s still a surprising amount of stuff streaming through it. There are protons, electrons, carbon nuclei, etc constantly slamming into the Earth’s atmosphere, producing showers of radiation. These cosmic rays are the reason so many sensitive physics experiments ( like dark matter and neutrinoless double beta decay searches) are located deep underground. The earth is a good shield against these cosmic backgrounds.

Even if there was an “isolated” antimatter galaxy, it would get bombarded with matter in the form of cosmic rays. The annihilation photons are a really distinct signal that would be hard to miss. There are a number of gamma ray telescopes in space that map out sources of gammas, and they would have detected an antimatter galaxy if it existed.

If the antimatter galaxies are so far away that they’re beyond the visible universe, then there’s still the big question of why there was a segregation of matter and antimatter early on.

You’re not alone; matter-antimatter asymmetry is one of the big open questions in physics. Most particle processes treat matter and antimatter identically, but there are a few areas where matter and antimatter have slightly different interactions. These occurrences are violations of Charge Parity symmetry aka CP Violation.

There must have been a certain amount of CP violation during the early phases of the Big Bang to explain our matter-dominated universe. But the known amounts of CP Violation are nowhere near enough to explain the asymmetry in matter and antimatter. There are some proposed mechanisms that would violate CP symmetry in sufficient quantities, but these haven’t been experimentally observed. There are ongoing searches to detect these processes, or related processes that would be possible if these existed. Neutrinoless double beta decay searches are one example of these detection efforts.

In summary, there’s a guaranteed Nobel Prize to whoever can answer your question.

Soft Paywall

Hard alligator, actually.

As annoying as it is to lug a bag around and find room for it, I much prefer this to checking it. There’s the small but nonzero chance your bag doesn’t make it to your destination, plus the added time waiting at baggage return.

I will run this thing until it dies.

Good luck with that. My 2011 MacBook Pro still works. I’m pretty sure it’ll outlive me.

One definition: food “belonging to the category that is salty or spicy rather than sweet.”

It’s a bit of an odd definition but it gets the gist across. An example of using savory: differentiating between pies with savory filling (meats, vegetables, etc) and sweet filling (fruits, custard).

Idk how a 10 minute drive is a half hour walk. Average walking speed is 3 mph, so a half hour is 1.5 miles. If you’re driving that in 10 minutes, you’re only averaging 9 mph.

I don’t mean to pile on here because I understand your frustration. I grew up in NYC where basically no one drives, and didn’t get a driver’s license until my 30s when I moved to California for work. Even then I put off getting a car for years, since I like walking and don’t mind “decent” public transit.

But it just became impossible to continue. My commute was an hour and 45 minutes (one way), with about 40 minutes of walking, a train and a bus. I like walking but when it was over 100 degrees in the summer, or raining, or a wildfire smoke day it was miserable. The buses run every 30 minutes so if there’s a missed connection the commute becomes over 2 hours (still just one way). And the train has only 1 line so when there’s a mechanical issue you’re out of luck and just have to call an Uber anyway.

I finally broke down and got a car. My commute is now 30 minutes each way. The gas for my commute is somehow cheaper than the public transit. It’s ridiculous and it shouldn’t be this way, but it is.

I’m not sure this is correct.

The community tokens crypto has been around since 2020. I think that’s separate from the new gold monetization scheme.