some of the over 70 pilots I see are very fit to fly, bungee jump etc and some are crumbling at 45, or even 25 for that matter. 70 seems to be the "new 60" these days, but I reckon the regulators are going to put in some pretty close medical scrutiny and probably a load of simulator testing as well if the age is extended. Doesn't the computer fly the plane these days?