Originally Posted by
MattoftheRocks
I am not very special at all.
We're all special, in our own way

. You're very special too my friend. Also I do believe you, and that there are many others like you, but you're in the minority here bud.
If you care about your bone density, which of course is a concern for all cyclists, small doses of cross training by running or weight lifting is the way to go. Most coaches will prescribe a little bit of this to their athletes, be it amateur or pro.
Most coaches will also prescribe a little bit of big gear work to their athletes, but not for the purposes of increasing bone density. Tricking yourself into thinking that you're significantly increasing your bone density by pushing a he-man gear on the road is just dumb.