It's not even arguable. I mean, think about, say, databases. I've worked with people who have far deeper knowledge about them than I ever will. A few old timers

It's not even arguable. I mean, think about, say, databases. I've worked with people who have far deeper knowledge about them than I ever will. A few old timers working at Oracle know more about database keys than anyone else ever will, and that expertise is necessary to build a modern system. And that's just one thing, databases. There are way more technologies out there. Even building my metal coffee cup requires deep expertise in metallurgy, manufacturing, industrial design, product design, supply chains, etc. etc. etc. I think it's past the point for a single human brain to retain all knowledge about databases, unless they're a profound genius (don't underestimate how much there is to know), and that is one tiny thing that humans do.