News for hackers. Stuff that matters.

A comment on Show HN: Why write code if the LLM can just do the thing? (web app experiment). Parent comment

Re:Show HN: Why write code if the LLM can just do the thing?... by roncesvalles on Sunday November 02, 2025 @03:33AM (#45788757)
On a tangent but I still don't know why we don't have showers where you just press a button and it delivers water at the correct temperature. It seems like the simplest thing that everyone wants. A company that manufactures and installs this (a la SolarCity) should be an instant unicorn.
[ Parent | on HN ]
Re:Show HN: Why write code if the LLM can just do the thing?... by lazide on Sunday November 02, 2025 @06:10AM (#45789461)
Water + electronics/power typically isn’t very durable, or reliable. Most people want their shower valves to work at least 20 years, ideally 50-100.
[ Parent | on HN ]
Re:Show HN: Why write code if the LLM can just do the thing?... by pepoluan on Sunday November 02, 2025 @09:35PM (#45795348)
Can be mitigated to a degree by separating the (cheaper) sensors and the (pricier) logic.

But then it will become a tradeoff of complexity vs longevity.

[ Parent | on HN ]
Re:Show HN: Why write code if the LLM can just do the thing?... by lazide on Monday November 03, 2025 @12:41AM (#45796161)
Nah, because it would still need servicing.

And why? There are reasonably well done, low maintenance, temperature balancing valves out there.

And they do typically last 20+ or more years.

[ Parent | on HN ]
Re:Show HN: Why write code if the LLM can just do the thing?... by pepoluan on Sunday November 02, 2025 @09:34PM (#45795343)
What's "correct" for you might not be "correct" for others. Furthermore, your owb definition of "correct" changes depending on circumstances; sometimes you want it hotter, sometimes you want it colder. Sometimes you want to change it partway through.

How do you calculate for that?

Back in the 90s, Fuzzy Logic was thought to be the solution. In a way, yes, but only for niche/specialized purposes, and they still have to limit the variables being evaluated.

[ Parent | on HN ]
Re:Show HN: Why write code if the LLM can just do the thing?... by roncesvalles on Friday November 14, 2025 @11:52PM (#45935139)
How about it uses temp sensors to read your skin temp (if that's the variable that matters, idk), and some mechanism for "feedback" after an initial guess? It's all implementation details.
[ Parent | on HN ]
Re:Show HN: Why write code if the LLM can just do the thing?... by yencabulator on Tuesday November 11, 2025 @06:00PM (#45894077)
For what it's worth, Northern European showers typically have two independent controls: temperature and flow. Leave the temperature at what you think is good, and either wait a moment for hot water to reach the end of the pipe or install a recirculating loop.
[ Parent | on HN ]