Just a monkey with a fasting app

The Matrix (1999):
Kung Fu

This came to mind when a friend asked my advice on fasting. I told her what worked for me, what I thought were best practices, and suggested the Zero fasting app.

The app has 330,000+ ratings. It’s in the top 100 Heath and Fitness apps. Which is kind of crazy because, it’s a timer.

Designs matter a lot in our actions. Using the app I make probably 90% of my fasting goals. Days without the app and the number is probably 25%.

One design theory is to consider appropriate information. If fasting is new to someone they need baby steps: an app that shows how much time has elapsed, guides to the ‘right’ fast, and advice, tips, community, etc.

Appropriate information feels like a weird concept until we see it. It’s like, oh, this other way of describing the world exists too Huh. Temperature is one of these areas. What’s the best way to convey information about thermal energy: Celsius, Fahrenheit , or Kelvin? It depends! What’s the gap between the individual and the information? Celsius and Kelvin work great for science and scientists because the information-individual gap has been narrowed by years of education. For the consumer though, Fahrenheit rules the day as the most legible.

Another is how to classify an avalanche. What’s the gap between an individual and the information? The US and Canada, for instance, use different systems. In the States avalanches have five levels according to “the path”: sluff, small, medium, large, major.

“These categories are in relation to path size, so a size or class number is not so meaningful without information on, or familiarity with, the path.” – Avalanche Institute

Locals have a small information-individual gap because they know the area. Compare the American system to the Canadian system, which also has five categories: relatively harmless, could bury or kill a person, could destroy a small building, could destroy a rail car, and largest known. There’s no information-individual gap when the warning is largest known.

It makes sense then that “just a timer” works for so many people. It’s not just a timer. It’s a tool to close the information-individual gap. Oh, I get it now. And even though the gap seems small (Siri set a sixteen hour timer), it’s large enough to matter.


per avalanche-center.org there’s also an international classification system.

the “just a monkey with a…” idea comes from Erik Jorgenson’s Navalmanack curation.