Training in Alignment Cycling in Alignment

The essence of what training in alignment looks like began to crystallize in my mind through an email exchange with a listener of the podcast.
"As you've identified in your show amateurs look at pros for things like training, not realizing that all pros do is ride, sleep and eat. For those of us who race, how much training is too much. Where is the drop off in terms of results? Personally, I'm not willing to train 20 hours a week even if I had the time. Anyway, I'd be curious to know where the curve stops where the curve starts to drop in terms of fitness and health. When does it move?" 
I hope you find my answer to this question useful as you determine your own sport-life balance.