It is random theory, however, if the arithmetic of a successful Potluck… bring enough for yourself and one other… it is random with one drop of “Here’s my new friend everybody!”
Somehow, I imagine this function could be incorporated into the potluck table idea. Something like a mechanism to bring one other along as a guest, perhaps?
All things benefit from a chaos theory approach… including the internet as a whole. Natural community and creativity emerges when you step out of the way and stop herding people. It happens already on Medium, except for this recommended reads mechanism.