Multiples languages at once - retarded?

Hey, a common "debate" about language learning, especially in this digital age, seems to be about learning more than one at a time. I mean, we all know that guy - the guy who says he is learning a list of 20 obscure languages who knows little more than a sentence in each. We all agree he's a dick. But what about actually studying more than one at a time? I'm learning Chinese right now, been at it for about a year, and while it's definitely going to stay my main subject for years, I'd like to have a little something else on the side, just as a little hobby. I'm considering Korean or a few others (I dunno why, but I just find it interesting).


TLDR Am I being an ADD faggot, or can more than 1 language be legitimately studied at the same time, so long as you don't lose  sight of your goals?

Learning Finnish is a nice way to fuck your brain. Good luck with that.