S-expressions?

Greenspun's Tenth Corollary:

Every textual data format that is not originally S-expressions eventually devolves into an informally-specified, bug-ridden, slow implementation of half of S-expressions.

Is there any way to buy and own a copy of it?

Had the same thought. It’s not that you can’t get an index out of Pandoc, it’s that it’s a bridge just slightly too far unless you’re really committed, and then you have a long road ahead of you.

I really enjoyed Gollum for awhile, but I'm not a Rubyist, and past a certain point, every time I tried to run it or Jekyll I got dependency problems that I'd eventually solve, but without understanding. It was undoubtedly user error; I should definitely have learned and used rvm or something.

Like the man said, “If you wish to make an apple pie from scratch, you must first invent the universe.”

Space is filled with a network of wormholes... https://www.youtube.com/watch?v=zSgiXGELjbc

Falsehoods Programmers Believe About Spacetime

You can only travel forwards at 1 second per second.

At some point will ISO-8601 have to be updated to include a field for difference in speed of time?

My time library considers measuring time from different frames of references:

https://github.com/withinboredom/time

From the earth frame of reference, the lunar day is different than from a lunar frame of reference.

Maybe it would be more precise to include a field for something like "gravity offset"

There is no difference in speed of time. Time always passes one second per second.

Not true, on Fridays after lunch time can sometimes pass as slowly as 3 seconds per second.

I've been in some 15min standups but actually take 30mins wallclock time, during which interval years pass.

I know some bores so good that 100 seconds passes, and I shake my watch ~ 1 second has passed, so there is a subjective localised field around some people..

To a local observer yes, but to someone moving at a different speed no! FloatHeadPhysics does a good job explaining some of this https://youtu.be/OpOER8Eec2A

Only if you disregard observers in different frames of reference interacting with each other, which you shouldn't when you need high precision and it comes to projects spanning Earth, Earth orbit, and the Moon.

GPS wouldn't work without accounting for relativity, for example.

You're missing the joke. It's still one second per second, only that everyone's second looks different.

Exactly.

Yeah, I guess I don't see what's funny about that statement.

Unlike "sometimes a second is longer than a second" (not literally true but it makes some sense in the context of relativity), this one just seems like a tautology to me.

Yeah, it might not be funny, but the tautology draws attention to the fact that there is no privileged frame of reference.

In other words, the only thing we can say without qualification is that a second is just a second in the same frame of reference. All other statements must be heavily qualified.

Even things like "A's second is longer than B's" are only valid in some frames of reference and not others.

Einstein would beg to differ!

I think Einstein would agree. Time is relative but you always experience 1 second per second no matter where you are or how fast you’re going.

But you can observe somebody or something in an accelerating frame having experienced time at a different rate.

In the twin paradox thought experiment, one of the twins really has aged slower than the other (or, from their point of view, the entire earth has aged faster than themselves).

In that sense, relativity has effects more tangible than distortion of observations across a large distance.

Einstein's watch would beg to differ with Einstein!

one earth second per earth second, or one lunar second per earth second?

My understanding is that the purpose of amateur licensing is to facilitate and encourage experimentation and learning, up to and including people building their own hardware; that's why the rules are about how your machine affects the world.

That's exactly right. I'm licensed by the FCC to build my own radio from a bucket of spare parts if I want to, and I can do whatever I want with it as long as I stay inside their rules. The RF I generate is what I'm responsible for. How I get there is up to me.

I spent a year getting maybe 75% of my stuff into a Johnny Decimal filesystem with the remaining maybe 25% firewalled off into an "unsorted" backlog. It's going to be a major pain to do the last 25%, but I can say with some longevity of experience at this point that I will definitely do it because having that first 75% so well structured has been awesome. The key to it was accepting that you can always move things around and restructure. You don't have to get it 100% perfect out of the gate.

Interesting read, thanks for the link. Puzzling how differently people across the political spectrum interpret the concept of "freedom."

I think this is really my favorite takeaway from the Cato Institute's study/ranking/index. Despite being #50 in personal freedom, Texas ranked #6 for most economic freedom. But even for things like "Personal travel freedom", half the sub-ranking was based on ALPR presence and seat belt laws. Somehow Texas ranked dead last for that, even though they allow people to ride in the back of pickup trucks without any seatbelt, and that's illegal in a lot of other states.

It's nice to see these comprehensive categorizations, where I can prompt myself to ask "How much do I care about this particular freedom vs. that one?"