I read the book (Bad Blood) and watched the mini-series (The Dropout) -- both absolutely great! and yet I still don't completely understand how Sunny & Holmes were able to fool experts inside their own company for so long.
Fooling the public is easy. But how do you fool the people working on the machines and trying to get actual results out of them? Sure, dividing the work into micro-tasks help, and creating an atmosphere of suspicion/excitement/respect for authority, etc. But still?!?