It’s rational to make yourself feel more good. That’s the final outcome of every aspect of self-interest that isn’t solely to remain alive. If the intention is to act solely in the self-interest of an emotionless unfeeling human-shaped robot:

• it’s very silly as such an entity doesn’t exist and wouldn’t care about its own interests if it did.
• it’s inconsistent with many other things Rand advocated for that only make someone feel better, but do so through hedonism rather than charity.
• it’s such a terrible model for real humans that it can’t inform us of what’s good for humans.

I’m not sure that doing something that only directly benefits other people but makes you feel better about yourself as you’ve done something good (or less bad as you’ve not spent the money on something you’d have felt guilty about) isn’t in your self-interest. Other kinds of making yourself feel good count.

When people use the phrase rational self interest they’re overwhelmingly meaning what Ayn Rand called rational self interest. If you take the words literally, they apply to any political philosophy as no one’s trying to design a system against their own interests. The disagreements come from people disagreeing what their interests are and how they can feasibly have them fulfilled, not because they don’t want their interests fulfilled. No one else bothers using the phrase because it’s obviously the goal and stating that would be entirely redundant, but risk making it sound like you were advocating for something Randian.

All of Ayn Rand’s own examples of rational self interest were irrational and against her interests. It’s such an easy philosophy to mock because it’s just really stupid. True rational self interest would involve creating cooperative structures that give a safety net if anything goes wrong just like how it’s rational to get home insurance even if you don’t expect to burn your house down. Anyone drawing Randian conclusions can’t have thought of rational self interest.

The trouble with that is that the Soviets had such a large arsenal that even if only a vanishingly small fraction of it still works, it’s still ruining someone’s day. An ICBM with a dodgy guidance system or leaky fuel tank still hits a populated area even if it misses a city. An H-bomb that misfires is still an A-bomb, and an A-bomb that misfires is still a dirty bomb. It’s plausible that NATO could win a nuclear war against Russia without even firing back just from Russia embarrassing itself and giving an excuse for a conventional war they’d also lose, but that’s a huge gamble that no one wants to make, especially when winning is still worse than the status quo.

Sometimes people write their reasons for doing things down and other people read them and they don’t need to read anyone’s mind to know why they said they did something.

I think the main draw of a moving vat is that you can tilt it during the film-part separation, so it concentrates the peel force in a line that passes over the part instead of having it spread over the whole thing and needing more force which could warp the part or stretch the film. That should mean you can get away with replacing the film less often. If the film isn’t replaced often enough, it can make the print quality worse, or tear and leak resin into the printer where all the LEDs are, which will kill the printer.

I think all Elegoo’s machines have at least some Chitu guts, and Chitu-free machines tend to make that their main selling point (and also cost a chunk more than equivalent Chitu-based ones).

If you really want entry-level, the Geeetech Alkaid is regularly on sale for $99 and I’ve had one for a couple of years and it’s fine. I’m not aware of anything it’s missing versus more expensive entry-level SLA printers, but no one seems to be aware it exists. Nearly all the problems seem to be because it’s full of Chitu hardware and runs Chitu firmware, but that’s true of nearly everything cheapish.

Real men make chlorine pentafluoride anyway. We have no use for pathetic hypergolic oxidisers with only three fluorine atoms.

It doesn’t really even need an exception. Working means disconnecting when more than 20 A are drawn, and this doesn’t do that. The rule works just fine, and counterexamples always boil down to someone misunderstanding the design goals and using a bad definition of works.

Of course not, but it’s an unrelated not fine to whether or not someone’s a tankie.

That’s not relevant to being a tankie as the US, Israel, and other states backing Israel, aren’t claiming they’re building communism or are the successor state to another which claimed to be building communism. It’s the part where communism is an excuse that means the bad things didn’t really happen and would be fine even if they did that makes tankie-ism its own distinct thing.

They used that TLD because it had the same letters as Marxist-Leninist, not because they’re from Mali. They’re not from Mali.

It’s not even early modern English. Shakespeare is Early Modern English, and takes more effort to understand than this does. This just uses words and phrases that have been unfashionable for one or two hundred years, and were generally posher than most people used even when they were in vogue.

Blaming us would be too close to root-cause analysis for them even to consider. We weren’t normally QA testers, but they’d left it until too late to hire internal QA, so roped in the developers (us) from a SaaS vendor their app replied on as emergency QA.

By the time the app was due to go live, we’d only reported bugs with the signup and login flows. This was misinterpreted as there only being issues with the signup and login flows, and the app launched on time. In reality, it was impossible to get past the login screen.

Once I was tasked with doing QA testing for an app which was planned to initially go live in the states of Georgia and Tenessee. One of the required fields was the user’s legal name. I therefore looked up the laws on baby names in those two states.

Georgia has simple rules where a child’s forename must be a sequence of the 26 regular Latin letters.

Tenessee seemed to only require that a child’s name was writable under some writing system, which would imply any unicode code point is permissible.

At the time, I logged a bug that a hypothetical user born in Tenessee with a name consisting of a single emoji couldn’t enter their legal name. I reckon it would also be legal to call a Tenessee baby 'John '.

Maybe XT-1 woke up with tattoos like this, but it said Dave the lab tech was here, and Dave was the only one to enjoy it.

It’s not Kessler Syndrome until it’s so bad that we can’t feasibly launch anything new. A single cascading collision chain might calm down again after breaking a lot of stuff without any catastrophic long term impact if all the debris ends up either in a stable orbit that can be predicted and avoided by other objects, or unstable orbits that decay until the debris falls out of orbit.

I’ve definitely noticed less shininess than the same filament was getting at the same temperatures on my previous printer, except for the first layer. As the first layer prints without part cooling, my guess is that the extra part cooling versus the other printer means it’s setting before it’s had time to self-level. If that’s right, then turning down the part cooling (and then also the speed so you can get away with the reduced part cooling) would make things shiny again. I’ve not bothered investigating that, as most of what I print is either functional, where I wouldn’t care about shininess, or gets painted, where any shininess would come from paint or clearcoat.