Turned 50 in 2020 and got my first “modern” geo MTB as well. Started riding MTB in 1989 and thought I had it all figured out until I suddenly ended up on the ground several times in the first few months of the new bike wondering WTF just happened?!? Usually on the ridiculously easy parts of trail too. I’ve been actively re-evaluating my bike position and how I ride and am psyched to keep learning, as I’ve also had some amazing experiences on my new bike as well - riding steeper tech and bigger drops than ever before. Just ordered a set of cones to practice my flat corners after reading your article - new tricks for this old dog. Thanks for a really great site and looking forward to 2021!