Remember that viral image of the long queue at Mount Everest? That was the work of Nirmal "Nims" Purja, who served in the armed forces before leaving to follow his passion for mountaineering full-time. He joins us on this week's episode to talk about his book 'Beyond Possible', a real-life chronicle of the sheer grit it takes to conquest all the world's 8,000-metre 'death zone' peaks in 7 months