It depends on your specific case, of course. That 0.4mm is indeed a good rule of thumb. But also, assuming you're dealing with FFF-printed parts, generally if the two parts slide together along the layer lines, it'll feel just a little looser than if they slide together perpendicular to layer lines. That's just due to the ribbed texture inherent to FFF printing. Though printing at smaller layer heights will reduce that effect and also make the parts fit just a little looser over all.

Aside from that, probably the best advice I can give is:

1. Measure/calibrate for dimensional accuracy. [Here]'s a random article on the topic that looks pretty good to me.
2. Prototype. Print once, if it doesn't fit right, adjust the model(s) and print again. Filament is pretty cheap, really. Also, depending on your situation, you might benefit from doing quick test prints just to see how well it fits. If the whole print is going to take 8 hours but by spending 30 minutes printing just part of the final product you can prove you've got the dimensions right, it's probably worth it to do the 30 minute print.
3. Use elasticity to your advantage. Make latches or attachments that snap into place. That's useful whether the parts are meant to go together once and never come apart or connect and disconnect repeatedly. Another use for elasticity is if you need two arms of one piece to friction-grip another rectangulat piece, angle the arms inward just a degree or two. One word of caution, though. It can be really easy to overestimate the flexibility of PLA. I've ended up once or twice with some pretty hard to open latches.

The factory grows.

2023 was the year Mississippi declared war on New Mexico.

So, first off, let me say that if it'll help us move toward something better than we have now, even if in my head I call it anarcho-communism, I'll happily call it "capitalism."

For reference, there's an author named Charles Eisenstein who in his book "Sacred Economics" advocates for taking steps that he intends to move us (the world, I guess) eventually to a gift-based economy without money or barter. And he calls it capitalism. With a straight face. Now, I don't know if deep down in his heart he believes it actually qualifies as capitalism or if he's calling it capitalism because he feels like his aims are more likely to be well received by pro-capitalists if he calls it "capitalism."

One can IMO go too far with that. Case in point: ecofascism. But I digress.

On to the definition of capitalism. At least in my head, capitalism is characterized by:

• The profit motive. The incentive to amass. (Typically money, but a barter-based system could well be the same in every way that matters.)
• Quid pro quo. The whole system is based on it.
• Private property. A particular set of rules for who has ownership rights over what.
• The institution of employment.

My answer didn't include the word "capital", so I'll skip that second question.

As to your third question, let me take exception with the question itself. I don't believe "control over what you produce" is necesssarily a good thing per se. I believe in having something roughly like ownership rights over what one uses. But if one produce a surplus, I don't believe they should be able to deprive others in need of said surplus.

I think capitalism coerces people into producing surplus for others to sell for a profit that the producer (employee) doesn't get a fair share in if that goes more to the spirit of your question.

Bonus questions:

1. I... don't know or care? "Capitalist" can mean someone who supports the institution of capitalism. Or it can mean something like an owner of a company that employs people. I think plenty of people participate in capitalism (by selling things they make, by accepting an employment position, etc) out of necessity while disapproving of the system as a whole. Hell, I'm one of them. I'm not sure I understand why you ask.
2. If I'm the person who sells things I make? Again, anticapitalists participate in capitalism because capitalism doesn't give them a choice. Does that answer your question?
3. The word "sell" here has some baggage I don't like. I'm not for a system in which anybody "sells" anything. But to answer how one might expand an operation that produces things, worker cooperatives are probably the most obvious answer.
4. Anyway, worker cooperatives are owned and run by the workers. Corporations are owned by shareholders and run by boards of directors. Worker cooperatives don't have incentives and power to fuck their workers over. They do have incentive and power to take care of their workers.

Maybe I should have read the first thread you referenced before answering these. Maybe it would have given more context. But hopefully this response gives you what you were looking for.

Wait, do people who are counting calories cook, for instance, spaghetti with meat sauce, cheese, and meatballs and only count the calories in the spaghetti? That's got to be kindof a denial and/or self-deception kind of phenomenon rather than legitimately thinking that the calories in, say, sauce are negligible or "cook off" somehow, right?

The kiosk, but only if it's new and hasn't been handled by the greasy-fingered hordes for years already.

I think she's ripping the still-beating heart out of the cameraman with her telekinesis.

Wow. I couldn't possibly be any more your opposite in this regard. I try very hard not to run proprietary software. For safety reasons. And when I do run proprietary software, I do my best to sandbox it. I don't let my Nintendo Switch talk to my home network often. I hacked my robotic vacuum cleaner not to phone home. I do my (U.S.) taxes on stupid paper because there aren't pure-FOSS options for filing electronically.

Let's see if we can get them to to sixth largest!

Mine was pretty spontaneous. I was studying psychedelics at the time (just because they're fascinating) but I've never done any before or since.

It was... hard to describe. It lasted several days at least, but my sense of time was greatly altered and it's hard to say how long exactly. I remember feeling like my mind wasn't fighting against itself the way it usually did. It felt like everything I did, my whole brain was all working/pulling in the same direction. Pretty much all I wanted to do was meditate for hours on end, and doing so was a wild experience with some very interesting visuals. I also came to some revelations about the nature of reality. (Though looking back, those revelations were the logical conclusion of several beliefs I had held before this experience. I think this experience just brought those multiple unrelated beliefs together and crystalized them into one cohesive worldview.) I did experience some synesthesia during the experience as well. The kind wherein seeing somebody else experience something, you feel it in your own body. I was watching a dancer on TV and feeling the proprioceptive feelings I imagined she was feeling.

Edit: I should add that it never really "ended." It tapered off over time until I was (in some ways) back to normal, but I couldn't identify really when I was back to normal. It was more like asymptotically approaching normal. And, I'll also say that in other ways, I'm still changed by that experience. And only for the better.

These programs you're referring to are voluntary, right?

So, the folks who would be against such programs on that basis think that if a(n arguably former) nazi enters the group not yet fully free of the bigotry they've taken concrete steps to overcome and says something, say, anti-semitic, if the program doesn't kick them out on a zero-tolerance policy, then the program is supporting (or at least insufficiently condemning) anti-semitism?

Edit: on rereading, I get the feeling you're saying something more like some people think having anything to do with (even recovering) nazis is tacit complicity or something.

This is a clickbait YouTube video waiting to happen. And now I really want to see it to find out all the logistical issues they'd have to go through to make, cook, and eat a single noodle long enough to reasonably be considered a single plate full of spaghetti.