I totally agree on the enchantment of the Oversea Highway trip, made it probably over 100? times. Dry Tortugas is a nice side trip. On the drive, two things to also consider, try to avoid traveling during school bus traffic hours, as they buy law often stop traffic both directions, like every 300 yards of travel, it seems like, and after 10:00pm the highway is nearly deserted ,if just making mileage is the goal, but one still should watch out for speed traps, as the limit changes island to island.

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.