So I saw this video by HuskyStarcraft... and I thought "I have got to try this out." What do you guys think on it's viability?

This could work, but the Protoss was terrible. Protoss should have scouted better, and he didn't get any warpgate technology or any robotics facility. I think an immortal + probe pull probably could have stopped this push, or just lots of stalkers maybe. You could try it, but proxies are always dangerous, especially if you get scouted.

Lol. No this isn't viable in higher level play.

Although, I was thor rushed along with a ton of marines and a couple SCVs the other, and it hit pretty fast. I don't recall if he had a proxy factory though, and I fast expanded, and I almost held it off, and I accidentally made a really bad micro mistake about a minute before the thor showed up.

Thor rushes are great vs bad players, but not vs decent players.

Looks viable with good worker micro. His build was not super-efficient too, he could've had that a good bit sooner. Seems like the timing is perfect for a 4-gate counter and reminds me of the Odin mission, haha. =)