There is a few good posts making fun of it but beware of the many "uhhh ackshully" nerds trying to explain how no one could possibly know that it's a legal crosswalk when painted like that so it's good, actually it got painted over https://twitter.com/anxious_e/status/1410986599848890373
Probably some kind of rooftop garden or vertical greenhouse situation but also a huge percentage of current plant farming systems are pretty automate-able, so possibly that? Idk, I'm not into this thought process.