"Show off!" said the man as I overtook him. I turned around to retort something, saw his tired face and decided to stay silent: his crankiness was only coming from exhaustion. We were about a kilometer away from the summit of Mt Whitney, and he most likely had started his day hike around 2am, tackling an insane 35Km round trip with an elevation gain of 1860m. I could understand that watching a young woman step lightly passed you, with no pack on and seemingly unaffected by