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jf01/21/20252 repliesview on HN

I wasn't able to find a full list of all Calm Tech certified devices, but it looks like the union of these two URLs lists most of what they have certified:

https://www.calmtech.institute/calm-tech-certification

https://www.calmtech.institute/blog/tags/calm-tech-certified


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jbm01/21/2025

I own that timer, or an Aliexpress knockoff there-of. It is great and helps my kids with their homework.

The daylight computer looked interesting too; but its website undermines the message it seems to give. I wanted a price and to order and could do neither, but there were long paragraphs about how revolutionary it was, with left to right and up-to-down transitions.

Animats01/22/2025

Looking at the full list of certified devices:

- AirThing View Plus: "This is placeholder text. To change this content, double-click on the element and click Change Content." Supposedly this has seven sensors, but only displays two values. How does that work? The values are displayed as numbers, too. A bar chart with green, yellow, and red sections would "calmer"

- Daylight Computer - Placeholder text again. No specs. What does it actually do? Writing only? Web browsing? Dark grey on off-white text, which looks like low-end E-Ink.

- Time Timer - looks fine, although everybody else's timers count down counterclockwise. How much does it cost? If it's $10, great If it's $100, come on.

- Unplug - if you need that, you have other problems.

This is disappointing. It's like the junk that used to be advertised in the magazines that were provided in airline seat backs. These are all non-problems or easy hits. They need something more useful, such as a more usable TV remote or home control unit or car infotainment system. Those all run from bad to worse.

I've run into "simple interface" people a few times. One was a guy who was plugging his book about how clever their design for a seat-back entertainment system was. He had a model of four typical users and how they'd use it to pick from a rather short list of alternatives. I'd already read the book. I said, why not just have a channel selector knob? Then it comes out that the thing had a payment interface for pay per view. That wasn't mentioned when they were explaining how simple it was.

A few years ago, there was someone who wanted to build a GUI for some common Linux tool to promote their design shop. I suggested tackling Git, which really needs a GUI. That was too hard.

This goes way back. In the 1930s, there was a thing for radios with One Knob. Here's a 1950s TV ad for that.[1] There was a long period during which radios and TVs had a large number of knobs to be adjusted to get decent results. That was finally overcome.

My favorite simple interface is General Railway Signal's NX system.[1] This is the first "intelligent user interface", from 1936. What makes it "intelligent" is that, when a train is entering the interlocking, the dispatcher selects the incoming track, and then all the possible exit points light up. They pick the desired exit and push its button. The system then sets up the route, setting the signals and switches. Conflicts with other routes are detected, so this is safe. If there are alternate routes, NX can route around other trains. The previous technology was that the dispatcher had to figure out which switches and signals to set themselves. There was interlocking to prevent hazardous setups, but the lever machines couldn't plan a route.

This kind of UX design is really important and usually botched.

[1] https://anyflip.com/lbes/vczg

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