rsederquist@vaildaily.com What is the fascination with biking across America? The Forest Gump in all of us to ride for a cause, in a race, or to simply see if we can finish seems universal. I’ve drawn a conclusion from studying this critical phenomenon: at the heart of every cross-country venture is a uniquely American ambition for discovery — internal and external — and curiosity regarding what we’ll see, what we’ll learn and what we can do. I’ve probably read a half-dozen cycling-across-the-states stories.