Hard to take any of his advice serious, when he starts by saying that weight isn't that important for a bike. Riding old heavy bikes vs. new lightweight bikes is a world of difference. The stuff said about safety:

> if a car crumples too much when it’s in a collision, that’s an unsafe car and you don’t want it on the streets. I feel the same about bikes.

also sounds a bit strange. Certainly carbon fiber can crack instead of bend, but you typically notice that. And aluminum is probably not as "bendy" as steel, but I've never heard about anyone getting into problems due to riding around unknowingly on a cracked aluminum frame.