dreamcompiler

If they were doing that they would say so. In fact if they were smart they would say that regardless of the true story. The fact they aren't saying that means they're either stupid or playing 4D chess. I know which I'd bet on.

I never forget either. Both were failures of the command/service module design, not the rocket.

I've started buying Shelly plugs. So far I'm very impressed. They have wifi, including a local AP server you use to set them up and each plug is its own web server. (There's almost certainly some flavor of ESP32 inside.) And there's a physical button on the device you can push to turn them on/off. And they do power measurement. There exists a vendor cloud plus an app but you don't need to use either.

I don't even have Home Assistant; I control them with a 192.168.xxx.xxx address in a browser on my phone.

It's almost too perfect. Let's see how long they last before they cook their internal electronics.

Dumb devices work as expected for at least 20 years and then you replace them.

Smart devices work as expected for a year, fail in new and exciting ways, and then you replace them with dumb devices.

And it sent 3 people to the moon and brought them back with no refueling.

60 years ago.

Author uses the words "top" and "bottom" but these words are ambiguous when it comes to objects in the sky.

A better way to describe the geometry is to notice that at sunset when the sun is in the west, if the moon is directly overhead its western half will be illuminated.

Agreed.

Can't vouch for this but from what I've read the 2025 remake (Highest 2 Lowest) is...not good.

FM is not multiplication. FM is driving one Voltage-Controlled Oscillator (VCO) with another. As Chowning points out it's fast vibrato.

AM (amplitude modulation) is multiplication. When you do it fast, you get what's commonly called a ring modulator.

John Chmoding did that.

Probably they expect the Trump administration to give them friendlier treatment than Kansas would.

I used to say Excel was the only truly useful, well-designed piece of software Microsoft ever made. It's an amazing example of dataflow programming and for that reason alone it's worthy of study.

Alas, Microsoft has enshittified it. Excel used to be a standalone program, then they made it online with the offline version hard to find. I bought that offline version only to discover it would stop working if it didn't phone home to the mothership every 30 days. Now (at least for my Mac version) it has stopped working entirely, even if I let it phone home.

I probably have a cause of action against Microsoft for this, but life's too short to wade into a legal battle with a sewage company and Libre Office is available and I'm switching to Linux anyway.

It's not quite that: The math only works in Anti de Sitter space, which is not the universe we live in.

The tiny black holes that are suggested by non renormalizability are one of the mysteries that make AdS/CFT an attractive direction in which to explore our own universe, partially because Susskind has already shown that black holes in our universe can be described by their surfaces.

That's the idea, but it's like the 2D creatures know everything about the 3D creatures, which the 3D creatures find quite shocking.

The actual dimensionality is 4D to 3D once you add in time. But the math basically says an nD hyperbolic conformal manifold (AdS) can be completely described by its nD-1 boundary (CFT).* So I think it works in any number of dimensions.

*Oversimplified and probably wrong, but probably close enough for this discussion.

In a sense it's the inverse of what you describe. A 3D creature could easily see everything happening in a 2D space because all the information describing the 2D space fits comfortably in a mere slice of the 3D space. It's trivial because 3D space is "bigger" than 2D space.

What AdS/CFT implies is the opposite: That all the information needed to describe a 3D space can fit in a 2D space, like a hologram. This is astounding and extremely counterintuitive.

The hitch is that our universe is (probably) not AdS; it's dS. And the astounding math doesn't work for the de Sitter space we live in.

I thought so too but it's not the case. Even the mineral sunscreens mostly absorb.

https://cen.acs.org/business/consumer-products/What-in-sunsc...

Good cryptography is written once by experts -- never by you! -- and shared widely via free libraries. It's a one-time cost, not a recurring one.

Computer security is expensive but that expense has nothing to do with cryptography.

Sunblock mostly absorbs UV (and turns it into heat). Some reflection occurs but it's mostly absorption.

I'm in the US and I just spent 5 minutes trying to figure out why a bird that can fly needed a special road crossing. I mean, a penguin crossing might make sense in a few places (but not Antarctica because there are no cars or streets there). Where do they have puffins that need to walk across a road?

Duh. Cultural differences in English are amusing.

https://en.wikipedia.org/wiki/Puffin_crossing

Sending a probe to orbit another planet costs X. Landing a probe softly on another planet costs 10X. Landing and then returning a probe costs 100X.

The numbers above are notional, not literal. But you get the idea.

Siri was always AI, but the popular connotation of "AI" changes all the time. It now means "LLMs built with transformers."

Rclone doesn't support MacOS extended file attributes. Or it didn't in the past anyway.

Dallas was a ridiculous soap opera with hammy over-the-top acting.

And I lived in Dallas so I never missed an episode.

This was one of my favorite shows when I was 10. When I am too old and demented to remember my own name, I will still remember the first four notes of that theme music.

I agree that keep-if is a better name. But you reiterated my point: remove-if works in the counterintuitive way the original comment noted, i.e. not like the common connotation of 'filter.'

As for deprecation, IIRC the '-if-not' functions were deprecated because the committee felt the 'complement' function accomplished that task better.

Edit: My IIRC seems largely correct. More detail at

https://www.lispworks.com/documentation/HyperSpec/Issues/iss...

Agreed. Anybody who looks at a picture of the brain can see the cerebellum (part of the hindbrain) is obviously a different organ. I only clicked the link to find out if there was any new science buried under the hype of the title.

Common Lisp's filter is remove-if which works this way.

(It also has remove-if-not but that's deprecated and if you use it your code smells.)

Amen. As an EMT/Firefighter you'll never catch me wearing a ring made of any kind of metal. I have seen and dealt with some pretty horrific things. Degloving is the only traumatic injury that makes me queasy to think about.

EMT here. I've never had a patient with a tungsten ring but I'm pretty sure our ring cutters would not work. So I looked it up. Apparently you have to break them off with vise grips [0]. One more tool for my kit I guess.

[0] https://m.youtube.com/watch?v=poM423pewRE

Yes. It's kind of like the halting problem: You cannot write a general computer program that will analyze the source code of any random other computer program and tell you if it will halt.

You can write a program that will analyze the code of a few specific other programs and tell you if they will halt. You just can't do it in general.

The 3-body problem is like that. Except it's much harder to find stable 3-body problems than computer programs that are predictable.

I took graduate orbital mechanics from Roger Broucke. He was one of my best professors. Not only did I learn from him what orbital elements were, but he also taught me the Runge-Kutta numerical integration method.

I didn't learn until years later that he had discovered several of the periodic solutions to the three-body problems. You'll see his name on this page.