the beauty of written content, you can skim the whole text in a few seconds, see if it interests you, jump to the conclusion, go back and read it all... in a world that's turning completely to video content, I'd say we can forgo the supposedly not so good style.

OTOH, he doesn't seem to really answer the real question: why they still used TTL when much more highly integrated CMOS technology was already available in consumer market? I guess it's something very specific to aerospace strict standards, and as far as I can tell he didn't say much about it.