Thanks so much for this link. I remain convinced that papers are so much more understandable with an accompanying talk by the creators. I wish papers would just come with a video talk included.
Also, I'd not be surprised if someone already invented and used this funnel hashing technique in say the 80's in some game or whatnot but just never realized what they had stumbled onto. Not to diminish the research, it's very ingenius.
Academia is a weird and broken place.
Disclaimer: work in a research lab full of awesome PhDs who largely agree with me!
Well, at least they are better than patents.