Blake really destroyed the bend. Bolt wasn't even worried about Bailey on the final leg, he was just watching the clock. It was good to see Bolt dip on the line, because he knew the WR was on. On a relay he wasn't going to dick around and ruin it for his teammates. Good job.
I hope Bolt either retires now or does the long jump. I don't want to see him continue sprinting. The (Jamaican) competition is getting closer and his WR's are going to stand for a long, long time. What's the point in going for gold again, and risk getting a silver?
EDIT: Commiserations to Canada.