1. That it is easy to stay in shape! Eat only meat & veggies.
2. That I can eat as much as I want and not suffer from hunger. See #1
3. That natural aging occurs much more slowly than I had reckoned. A lot of things I associated with aging were corrected when I adjusted my food choices. The brain fog I had accepted years ago is gone.
4. That posture should be simple and natural! Stick your butt out, don't tuck it in.
MDA deserves a lot of credit for introducing or reinforcing each of these. Thanks, Mark and the whole MDA community for your contributions to my understanding.
I can't wait to find out what else I've been completely wrong about.