Comment by chfritz

"So if you can't collect enough data before building, and simulation won't give it to you, where does the data come from? Goldberg's answer is what he calls the data avalanche: build a working system using engineering plus some learning, ship it, then let production generate the training data." -- agreed! This is also the approach taken by Field AI if I'm not mistaken. Rather than calling it the data avalanche, you could also just describe it as "learning by doing".