Some of the best things I found on the internet this week:

  • Why former 49er Chris Borland is the most dangerous man in football – Borland quit the NFL after one year out of concern for how the violence of the sport would damage his brain. He is bright and thoughtful and talented, but walking away from a lucrative, high-profile athletic career was a no-brainer (pun intended) to him in light of the possible consequences over the long-term. Is football our watered down, but still violent, version of the Roman Colosseum?