This very good video is the work of Horse Revolution.

We truly admire the talent. However, we do not necessary agree with the conclusion, which is that horses should be trained without bit. Our perception is that horses are athletes that should be trained as athletes. Their education should be about preparing efficiently their physique for the effort. The failure of actual training techniques is that horses are instead submitted to a system. The abuses that are presented in the show rings result directly from the incapacity of the training systems to prepare athletically the horses’ physique for the performance.  

The study about the damages caused by the whip demonstrates the inaccuracy of old beliefs. When I was a steeple chase rider I was told over and over that due to the adrenaline, the stimulation of the whip at the end of the race was not painful for the horse. This was obviously another of these unfounded opinions which abound in the equestrian world without having any scientific basis.   Jean Luc Cornille