Repeater Only Logic

[jxu]

Reviving a video I made 4 years ago on a concept that's even older than that, repeater only logic:
(Warning: weird voice)




I noticed today that this Numberphile video by Matt "Parker Square" Parker is a strikingly similar concept, with dominoes:




I never made a part 2 video, but I wonder if anyone is interested in carrying this further...

[Mar_Win]

I've seen Parkers video first and build an adder according to the domino design. It's actually pretty cool, but also somewhat useless