Article: It's Totally Normal To Watch Other People Playing Video Games.  It' trying to make sense for a non-gamer audience about what the heck Twitch is and why it's worth so much freaking money.

What is Twitch? Twitch is the modern, monetized version of an experience now decades-old. Twitch is watching friends play Mario Kart at a sleepover. Twitch is watching your cousin—the only familial owner of that precious N64—play Zelda. It’s losing early at Halo or Goldeneye and having to sit out; it’s watching your sister navigate the world she built in Minecraft.