@Daveography Thank you for sharing your memories. And that last photo (the mid-air mountain bike blep) is fantastic.
I remember thinking, when reading "Dr Dagly's" posts about mountain biking, that he was clearly a bit of an adrenaline junkie, but that it was probably a necessity given his work. That by ending his every workday/workweek with physical exertion & exhilaration, he was allowing his body to effectively process all the chemical stress build-up from having to stay calm & focused in intense situations, and thereby helping to protect himself from burnout and compassion fatigue.
But the exhilaration of pushing one's body to the limits comes with real risks, that even the most irrepressible spirit cannot always push past.
So sorry for the loss of your friend. May everyone he touched find some way to keep his joy & compassion alive.