SOCHI, Russia — What happened Saturday night in the Sochi Olympic stadium defied earthly norms in enough ways that it wound up altering the brain until the scene looked misshapen. So it finally kind of made a demented sense in the 95th minute when the whole thing drifted into psychedelia, as Germany’s relieved players went streaming down the sideline to heave into a festive pile in the stadium corner, having just beheld Toni Kroos’s whiplash winner. They did so as German fans boomed a sound German fans never boom, that unmistakable sound of escape.