deerfield,
yep, you did the math right. i was at 7:32 for my average pace.

as for what do you do/think while running a long time. i often have the same question. what am i thinking about while i run?

i do not run with ear phones. just my preference, i don't really care for the practice either.

for myself, if i am with other people, i like to talk. the strangest subject come up that i don't think would ever happen otherwise. when i am alone i wander. often, i get in a zone, may go a few miles before i get back to reality. just watch the watch and make sure i am on my pace. usually very peaceful and relaxing.

it gets really hard to do the complex math of figuring time, minutes, seconds, miles etc, i usually have a time sheet with splits to help.