Markus is an ice climbing world champion. On "real" ice, he has done routes as hard as M13+ and on rock up to 9a.
At this day and age, everyone who is aiming to become the best must use very specific and highly scientific training methods. The research needed is very similar to rocket science and, consequently, Markus' training facilities creates a very lab-like atmosphere.
Just watch this video and see for yourselves: