Rousey really thought she was invincible too. She just got a huge wake up call. And got her ego checked. This might humble her a little bit.
I can't even believe she got knocked out though. I can during the fight after all the punches she took to the face before that kick. But I thought Holm would win by wearing her down, getting her shots in, and lasting all 5 rounds to get the decision.
At the same time, if Rousey wasn't so reckless, she could have won at any time with an arm bar by any misstep in the later rounds. But she is so used to winning in the 1st round (more like 1st 20 seconds) that I knew she wouldn't stay composed if Holm survived the 1st round.