“Standing on the last good foothold before the jump, the pressure was almost getting me. Eight hundred meters of air dropped away below me, above me were the hardest moves on the whole wall. A wild sideways leap to catch a rail pointing in the wrong direction. For a moment I'd be completely airborne, ready to catch the rail on the way past. We’d spent the entire previous month preparing for this moment. I took a deep breath. Big wall free climbing is surprisingly similar to competition climbing.