I get the geek/gamer stereotype, but have you seen any of the big esport teams? Sure, there are a few heavy-set gamers; but for the most part they are pretty skinny or at least average looking at the professional level. Check out the team portrait for Na'Vi (one of the top DOTA2 teams), the several LCS teams, or Bajheera (one of the most viewed WoW streamers). Geek shaming should be a thing of the past.

Not to mention Russia used coordinated cyber attacks against Georgia back during 2008. The only reason this is garnering more attention is because it finally hit American media. Warfare is dynamic anyway, this is just like moving to geurilla warfare from marching in fixed lines. It's sneaky and means minimal casualties to the offensive faction. It's naive to think that the cyber domain wouldn't be used for war sooner or later, especially considering how many things rely on the internet these days.

It's always Layer 1