If you want proof that humans are pretty awesome, watch this

El Capitan. A Californian cliff-face three times the height of London’s Shard, with so little purchase that a fly would think twice about scaling it. Did that deter climb legends Alex Honnold, Lynn Hill, and Tommy Caldwell? Of course not. At 2 minutes 50 they are climbing without any safety ropes – watch, and feel your heart skip a beat…