I believe that most of us that 'made it' (past the kickstart/young-ish phase) have experienced burnout at some point, and we know how much it can delay us from making progress...

That's why I think we should at least try to warn our younger friends that all that eagerness to 'make it there' might actually hurt them in the process. Consistency is key and will take you far, because you'll keep on delivering.

Your boss most surely won't remember of your "weekend hero/superstar" phase when you're having a one or two month downtime period because your head isn't right, and your body isn't working okay from all those jolts you've given yourself from your caffeine micro-poisonings. He'll ask "are you gonna keep me those deadlines?" :-)

So yeah, we should leave the young people be young but the more information, the better.