Alex Honnold has done the triple crown of climbing in Yosemite. El Cap, Half Dome and the Mt. Watkins.
Alex was studied with "fMRI" or functional MRI, which follows localized blood flow in the range of seconds which increases with increased neural activity. The interpretation presented in the film suggests Alex had a decreased response to fearful stimuli (pictures of sinking ships, knives, etc.) since there doesn't appear to be increased activity in the amygdala as compared to other subjects considered to be "normal."
The film won an Academy Award for Best Documentary Feature, 7 Emmy Awards for Outstanding Cinematography for a Nonfiction Program, Outstanding Sound Editing for a Nonfiction Program, Outstanding Sound Mixing for a Nonfiction Program, Outstanding Directing for a Documentary/Nonfiction Program, Outstanding Creative Achievement in Interactive Media within an Unscripted Program and Outstanding Picture Editing for a Nonfiction Program.
The opening title sequence of Viaje a las estrellas V: La última frontera (1989) shows Captain James T. Kirk attempting to free solo El Capitan. It was released in the United States on June 9, 1989. Alex Honnold would have been 4 years old at the time.