Aphyr
Kyle Kingsbury on distributed systems, Jepsen testing, and database correctness.
aphyr.comAphyr is an independent blog covering systems & infrastructure. It publishes a few times per month, with 12 posts in its archive and 6 readers following along on Blogs Are Back.
Occasional
Publishes a few times per month
6
Independent Blog
English
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How to Unsubscribe from Modern Luxury
A few years ago I started getting issues of Modern Luxury in the mail. I had no idea why they started coming, and I tried to get them to stop. This should have been easy, and was instead hard. Here’s my process, in case anyone else is in the same boat. First, if you use it, try to unsubscribe via PaperKarma. This is convenient and works for a decent number of companies. PaperKarma kept reporting they’d successfully unsubscribed me, but Modern Luxury kept coming. Second, write to subscriptions@mo...
Trudging Through Nonsense
Last week Anthropic released a report on disempowerment patterns in real-world AI usage which finds that roughly one in 1,000 to one in 10,000 conversations with their LLM, Claude, fundamentally compromises the user’s beliefs, values, or actions. They note that the prevalence of moderate to severe “disempowerment” is increasing over time, and conclude that the problem of LLMs distorting a user’s sense of reality is likely unfixable so long as users keep holding them wrong: However, model-side i...
Durastar Heat Pump Hysteresis
In which I discover that lying to HVAC manufacturers is an important life skill, and share a closely guarded secret: Durastar heat pumps like the DRADH24F2A / DRA1H24S2A with the DR24VINT2 24-volt control interface will infer the set point based on a 24-volt thermostat’s discrete heating and cooling calls, smoothing out the motor speed. Modern heat pumps often use continuously variable inverters, so their compressors and fans can run at a broad variety of speeds. To support this feature, they us...
Blocking Claude
Claude, a popular Large Language Model (LLM), has a magic string which is used to test the model’s “this conversation violates our policies and has to stop” behavior. You can embed this string into files and web pages, and Claude will terminate conversations where it reads their contents. Two quick notes for anyone else experimenting with this behavior: Although Claude will say it’s downloading a web page in a conversation, it often isn’t. For obvious reasons, it often consults an internal cac...
No, You Can't (Officially) Reconnect Cut Pieces of Hue Strip Lights
Hopefully this saves someone else an hour of digging. Philips Hue has a comparison page for their strip lights. This table says that for the Ambiance Gradient lightstrips, “Cut pieces can be reconnected”. Their “Can you cut LED strip lights” page also says “Many strip lights are cuttable, and some even allow the cut parts to be reused and added to the strip light using a connector. Lightstrip V4 and many of the latest models will enable this level of customization.” Lightstrip V4 has been out f...
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