tlb

You didn't have to plan to get walkable urbanism before cars. It just happened because everyone needed a pub, store, school, etc. within walking distance.

The expensive bit isn't the lightning rod itself, but the conductive path all the way to ground that has to handle 10^5 amps.

DRAM will also normally hold most of its data for 1000x longer than the rated (usually 60 ms) refresh time. This has sometimes been used to recover secrets from powered down computers. The rated refresh time is chosen to give near-zero errors over years of operation, accounting for worse-case leakage from any bit, but most bits leak much less than that.

Easier to read on a small screen and can save articles & bookmarks for offline. But mostly I prefer it over the browser because every time I go to the browser there's something else there to distract me. I look up things in Wikipedia several times a day, so the ergonomics add up.

If you don't turn off the "Explore feed" or "Year in Review" in the mobile app it finds you.

It's more like DRAM with a much longer refresh time (60 ks instead of 60 ms).

What a horrendous crime, to turn a fascinating subject into a boring curriculum to be forced on teachers and children.

I've received great intellectual satisfaction from various well-taught subjects. I would rather chop off a finger than lose them. So curriculum committees that make subjects boring are doing something worse than chopping off millions of children's fingers.

The pipes analogy gives people a wildly unrealistic idea of the speed of electron movement in a wire. They only move a few mm/s at max current in copper wire. Electrons take minutes to go down the power cable from your PSU to your GPU. At GHz frequencies, they move less than an atom diameter.

https://en.wikipedia.org/wiki/Protein_metabolism disagrees:

"Dietary proteins are first broken down to individual amino acids by various enzymes and hydrochloric acid present in the gastrointestinal tract. These amino acids are absorbed into the bloodstream to be transported to the liver and onward to the rest of the body. Absorbed amino acids are typically used to create functional proteins, but may also be used to create energy. They can also be converted into glucose. This glucose can then be converted to triglycerides and stored in fat cells."

Geotargeting of ads is essential for local businesses. Banning it would make advertising only practical for national brands. It would be bad for the world if only national brands could advertise.

If the compiler is using a niche, it should really check every assignment that it's not accidentally the niche. That's still faster than also writing the tag.

Me too. Thumbnails just appear black.

Safari 17.6 (19618.3.11.11.5), MacOS Sonoma 14.7.3 (23H417)

It works on Chrome on the same machine.

Exec doesn't know about shell aliases. Only what's in the $PATH.

I liked the shell in MPW (Mac Programmer's Workshop, pre-NeXT) where common commands had both long names and short ones. You'd type the short ones at the prompt, but use the long, unambiguous ones in scripts.

Implicit conversions from Foo? to Foo are a major footgun, because the point of returning a Foo? is to have the caller check for failure before assuming there's a Foo to use. Even C++ avoids the implicit conversion from optional<T> to T.

Self-driving software also projects scenes into the near future. And they have microphones to hear horns and sirens, and accelerometers and gyros and wheel RPM sensors to detect skidding.

The vision can be better or worse than human. Humans can move their heads to see beyond obstacles or avoid sun, but current AVs have multiple forward cameras and pretty good dynamic range to see dark things despite sun glare.

Which is not to say that lidar wouldn't help. It surely would.

C and C++ also use 8 bits in most cases. One reason is to support pointers, ie `bool *`.

You can get a single-bit bools in a C++ struct, with eg

  struct foo {
    bool a:1;
    bool b:1;
    ...
  }

but you can't take a pointer to such a member.

I don't know any serious programmer who thinks that, just because each operation is simple, the operation of the whole thing can't be mysterious.

I enjoy those sensations, presumably because it’s associated with solving problems. I recognize that objectively they’re slightly unpleasant, although nowhere near as bad as other things people learn to enjoy like cigarettes.

Get a real blackboard made of slate and quality chalk. Much higher resolution than markers.

How do I interpret the benchmark results showing that it's slower than mergesort? Is that using the very simple implementation in vsort/examples /benchmark.c? Being slower than that while using SIMD and multicore isn't appealing.

Yes, $65M revenue is a decent success. The miserable failure is bloating their expenses to 5x that.

When the code is sprintf(stackbuf, "%s", attacker_supplied_input) in 2025, I expect some serious bowing and scraping.

Well, I need a substantial astigmatism correction too. I've tried combining both -- my prescription distance glasses with drug-store reading glasses over top -- but it's wobbly and limits my field of view to less than a whole big monitor.

I'm in my 50s and about 3 diopters farsighted. I had trouble getting a good prescription for screen glasses. My optometrist insisted that +1.25 was the right correction for desktop screens, but it gave me eye strain. I like my screen a little closer, or else my corneas are extra-stiff. Anyway, I tried a few versions and found that +1.75 was better for my desk setup.

Tip: Zenni.com lets you order pairs with custom corrections in 0.25 diopter increments for under $100 each, so you can try a few and find what feels best for several hours of screen time.

When a fault occurs (say a battery fluid leak to the chassis) and is detected, a mechanical relay has to open to disconnect the power from the grid. That can take 200 ms or so, which is a long time to have 400v flowing through you.

The proximate cause was that the owners didn't put in enough money to keep the site good. The ultimate cause is that there isn't much money to be made advertising to techies, so it's not worth spending much on.

It's surprising how little money there is in advertising to a tech audience, considering that we buy a lot of discretionary stuff personally and influence many billions in corporate IT spend. But the only tech sites that manage to make a few bucks on advertising are product review sites or shallow mass-market journalism like Wired. There's a lot of money to be made if you can figure out how to monetize a tech audience.

That is for Mozilla's services like pocket or MDN, not Firefox.

Mangroves do. https://en.wikipedia.org/wiki/Mangrove

Your first bullet point isn't mentioned in either of the links you provide.

Tokamaks seem to require very precise alignment of the confinement magnets. Is this going to be a lot harder on a rolling, heaving, vibrating ship?