From time to time people send me some interesting photographs.
This particular photograph is of a comparison in riding techniques. Depicted here are two approaches to taking severe descents on horseback. On the left is how severe descents were taken prior to Federico Caprilli’s “Natural System” of forward riding. On the right is how such descents were taken using the methods designed by Caprilli. The rider on the left I believe is Col. Francisco Forquet (c. 1937?).
Oddly enough, even today some forward riders forget their forward seat and take radical descents like this in the way the rider on the left does. Caprilli intended for a forward seat to be maintained regardless of the attitude of the terrain or obstacles being passed.