In the past, cataloging an extreme sports list was easy — there wasn’t much to work with. A skateboard here and a parachute there. Now, curating a list of extreme sports is much more difficult, what with sports like bossaball, ZORB globe riding, WiSBASE and trampoline bridge jumping. I know, this whole extreme sports thing is getting a tad ridiculous. We love it. Aside from keeping track of the new and zany fringe extreme sports, there’s the matter of opinion. Is skateboarding an extreme sport? What about open-water swimming? I imagine the level of extreme-ness matters, but even that can be arbitrary. Some sports are undoubtedly extreme, but many of them, well, it simply depends. Does hopping on a mountain bike and taking a nicely groomed single-track trail through the woods count as extreme? I’m not sure. But this gut-wrenching and insane video of a Chilean downhill race — THAT IS EXTREME. Don’t get me started with semantics.

Extreme Sports list