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Cake day: August 9th, 2023

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  • DNA evidence sorta points that direction, but it’s complicated. There were likely waves of migration to North America from different groups. Most of the DNA in native people can be traced back about 13k years. The link in OP points to artifacts from 27k years ago.

    However, there is some evidence of mixing with a different group.

    https://www.science.org/content/article/ancient-dna-confirms-native-americans-deep-roots-north-and-south-america

    Just as mysterious is the trace of Australasian ancestry in some ancient South Americans. Reich and others had previously seen hints of it in living people in the Brazilian Amazon. Now, Willerslev has provided more evidence: telltale DNA in one person from Lagoa Santa in Brazil, who lived 10,400 years ago. “How did it get there? We have no idea,” says geneticist José Víctor Moreno-Mayar of the University of Copenhagen, first author of the Willerslev paper.

    This is an area of active research where a lot of old models are being thrown out over the past few decades. The idea of a single migration from Siberia, the one most of us were taught at school, is definitely wrong. Timing of the glacier movement is too convenient, and the migration would have to have happened far too quickly. What to replace it with is still up in the air.





  • It’s likely true, but doesn’t have to be, and the fact that this is being phased in with only new units means the power company can plan for it.

    The transformers for the neighborhood can provide a certain amount of kVA at once. If all houses on a single transformer drew their max load, they would overload it. The power company plans on that not happening, because people vary their load from minute to minute. A hair dryer goes on in one building when an electric stove is turned off in another.

    A few of those houses could upgrade their service. We upgraded ours from 100A to 200A when we installed solar and got EVs. However, if all our neighbors tried to do that, the power company would tell the last few on the list that they couldn’t provide capacity (possibly more than a few). This is why smart circuit breaker boxes are important. They can be programmed to turn on certain circuits for high draw items, like electric dryers or an EV charger, in a round-robin fashion so nothing is drawing too much at once. People can get one of those and keep their 100A service.

    When it’s building new, though, the power company is consulted on how much power the unit needs and they plan accordingly. It’s a non-issue for this purpose.


  • 240V/20A will charge an EV with a 50-60kwh battery in around 12 hours. That’s a typical SUV EV battery. Unfortunately, there aren’t a lot of good options yet for EVs that aren’t SUVs, especially if you avoid Tesla. In any case, there are some options coming down the pipe, and they’ll likely have smaller batteries because they just don’t weigh that much.

    That much is fine for daily use and the occasional road trip. The day after a big drive, you’ll have enough to get to work and back. The situation it might not handle is back to back long trips. Overall, not ideal, but adequate.





  • I’ve been giving static site generators a go, specifically Hugo. Webdevs have always treated static sites as unserious, but there’s plenty of sites out there where it’d be ideal. An awful lot of those sites are currently on WordPress.

    Does your local mechanics shop need a dynamic site? No. Local restaurant that points you to an external site for online ordering? No. Little gift shop selling locally produced goods? If they don’t intend to sell online, then no. A manufacturer with product pages that have a “where to buy” button that sends you to their sales partner in your country? Nope.

    How many CPU cycles are wasted on these sites that could be nothing more than reading a file and streaming it back to the client?



  • Rebuild from scratch gets a bad reputation sometimes because it’s the go-to response of a junior programmer with a little experience. They know the system could be done better, and it seems like the fastest way to get there is to throw out everything.

    What often happens next is the realization that the existing system was handling far more edge cases than it initially appears. You often discover these edge cases when the new system is deployed and someone complains about their use case breaking. As you fix each one, the new system starts to look worse than the old while supporting half its features.

    This often leads people to prefer refactors rather than rewrites. Those can take a lot longer than expected and never quite shed what made the old system bad. Budget cuts can leave the whole project in a halfway state that’s worse than if it was left alone.

    There are no easy answers, and the industry has not solved this problem.


  • That can be an advantage. Some of the enterprise-level tech has trickled down to consumer WiFi in recent years, which includes browsing between multiple access points. With several access points with relatively weak signal, you get signal right where you need it without broadcasting up and down the street.