I think the idea is that each project gets an initial small period of launch work, and then after that they're mostly self-sustaining for their economic lifetime. "Optimize for time." In that case, half hour/month may be enough.
The 1$/day and 400/month figures are just for illustration. The idea is to crank on multiple simple things that share characteristics. As you optimize for time, you're also optimizing for "crank," getting better at cranking out simple things.
The 1$/day and 400/month figures are just for illustration. The idea is to crank on multiple simple things that share characteristics. As you optimize for time, you're also optimizing for "crank," getting better at cranking out simple things.