[wnolens]

I actually think this is one of the few (only?) good Amazon practices.

Anyone who can't grok the doc in 30 mins is unlikely to ever open it, and if they do and spend a few hours on it, chances are they don't have much to add and it only served to educate themselves.

Instead, you give it your best shot, surrounded by others which helps to focus/eliminate distraction and then get to listen to someone with far more depth critique it - and you get to learn their framing and about a ton of nuance you would never have taken away otherwise.