Killian Jornet and David Goettler talk about Everest 2021

<p>Killian Jornet  and David Goettler recently returned from an attempt at an unassisted, oxygen-less ascent of Everest. Scott Johnston unpacks their experiences of acclimatization, and training cycles at altitude; the unique situation of climbing big mountains, post-lockdown; and the influences of social media on the projection and attainment of goals. </p>