Associative Design

Hello all, I came across this "associative design" video on youtube. It's a pretty interesting planning strategy. I personally haven't used grasshopper in this fashion before but it's quite intriguing. Anyway im trying see if i can replicate the logic. I gave it a quick start and im out of time for the day(it might seem a little sloppy) but I thought id post my definition to see if anyone else wanted to take a stab.