Comments
Reminds me of these ideas that are happening now:
https://www.ideaspies.com/posts/multiple-cropping-could-help-feed-the-world
The dual economies idea focuses on how modern world (tech and services-oriented output). Since agriculture requires the land for plant day after day, which means it cannot be shared even when farmer sleeps. The utilization of workplace is different, it is totally in a waste at night.