One thing that cannot be stressed enough, every system (I like the systems engineering way of thinking that goes beyond the single product to include everything

One thing that cannot be stressed enough, every system (I like the systems engineering way of thinking that goes beyond the single product to include everything from operations to maintenance, I come professionally from the point where Supply Chains meet design), every engineering project has to account for operating procedures, manufacturing procedures, training and human factors. In all seriousness, the series about Chernobyl is great in driving that point across.