Searching isn't a great way of actually retaining information. You get a very shallow understanding of the topic.
Reading books cover to cover, at least when they're well written and not full of padding, is time much better spent. And when doing so, I too prefer the ergonomics of printed books.
The idea is that you are gradually building Brain-tree indexes in your grey matter as you read it cover to cover. Whenever you need to look up something again you kinda have a vague idea where to look.
You can't just command someone to do something and not explain why, otherwise, obviously, they're not going to follow the command.
The argument would be for the purpose of convincing me that the command has any merit, right? After all, I'm not employed by the guy who made the command and he's not a government officer, so why should I listen?
You can absolutely do that, just like you can also propose arguments that fail to persuade. I'm not claiming it's an effective way to spend one's time.