[cctalk] the 1968 how to build a working digital computer

Last month, I got to speak at VCF SW on aspects about the history of personal computers. https://www.youtube.com/watch?v=fpF6Ofrr6_0 (I botched a couple things, a link to corrections is in the Description) I brought up the 1968 book "How to build a working digital computer"(Alcosser). I was wondering about opinions here on that book - was it at all influential at the time? Or is anyone aware of actually building the system it describes? And - any thoughts on "digital computer" vs analog? I'm aware of early Heathkit analog computers. Is it fair to say quantum computing is sort of a return back to analog computing? I recently heard someone make a comment that we're near the end of the "3.3V era" (maybe this was in the recent X16 talk, where some of the challenges of the recent retro-remakes is exploring back to the 5V era and how it's getting more difficult to find modern-make components that support that). Has no one explored a "tri-state" system? (discrete regions across 5V?) - Steve (v* voidstar tech, not to be confused with voidstar labs)