[Jellyspice]

I don't understand the last part of the talk, how does simplification going to save our knowledge? Do you really need to simplify things? What about a training wheel environment where everyone builds their system from the ground up?

[mikewarot]

There are too many layers of abstraction. Each layer has real costs, even if you can't quantify them right now. The whole idea of signing code, for example... is just a response to the weakness of operating systems, not an actual need to run any given program.