I know I shouldn't "judge a book by it's first few paragraphs", but the "40-50 years old = bad" is such an annoying fallacy in tech.

It's like throwing out proven fundamentals of how to build a bridge just because we went from horse and buggy to cars.

(I say this as a nerd that desperately wishes for a lisp os that goes down to the metal, for plan 9 to be popular, etc.)