Yesterday afternoon I did the 40-min run that was on my training schedule. I did it on the treadmill, again increasing from 5.8 mph to 6.2 mph to average 6.0 mph. The total distance was 4.0 mi. This run seemed easier than the run from the previous day, even though it was longer. Who knows why. I also watched one of the best Stargate SG-1 episodes ever, "A Matter of Time", which involves a black hole.