Bolt jogs a 46.74 and then is taking a nap on the infield
Having just watched the video from the post previous to this, it's very evident that Bolt gave everything he had to run that. It proves two things:
A. He hates the 400
B. He's not in very good speed endurance shape.
I posit two further things
A. He doesn't care about B. above
B. He'll be in shape (for a 100/200 at least) come Moscow.
He's proven over and over that if and when he decides to get serious, it doesn't take him long to get into superb shape. That said . . . he IS getting older and it won't be quite so easy to do that as time goes by. But . . . never bet against him at Championship time.