Talk:Ludicrous Listener/@comment-217.235.136.208-20150709063916

What actually counts as a "topic"?

Is "Chemistry" a topic? Or is "Chemical reactions and stoichiometry" within Chemistry a topic? Or is only "Balancing chemical reactions" within that a topic?

All large subjects are divided into several smaller ones, I don't see a lot of minor subjects that get anywhere close to 10 hours worth of videos, so is it actually possible to get this without rewatching videos?

I constantly get 'nice listener' badges for ever little part of "Crash Course: World History" (i.e. "Nice Listener in: What happens when you stay put", which is why I am unsure if larger things also count as single topics.