The route is still there. The ridge still goes upward. The mountain still looks possible. Then the tracks begin to disappear. That is the moment: when ascent continues, but return is no longer certain. #Kordillera #Cordillera #PointOfNoReturn #MountainDecision #Mountaineering #Alpinism #Whiteout #Navigation #HumanFactors #RiskManagement #HighAltitude #MountainSafety #ClimbSmart