Years ago I got to thinking about how to compare bicycling to running. I decided that a bicycling century must be about the equal to running a marathon. Roughly a 4 to 1 ratio. My logic was that either is do-able by an ordinary mortal, but both require about the same degree of dedication.
__________________
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.