Embattled hedge fund manager David Einhorn - in the midst of his own struggles and a horrifying stretch of returns – is still not ready to throw in the towel on his criticisms of Tesla. Coming off of Tesla's Q3 report - a report that on the surface handily appeared to beat expectations - Einhorn proclaimed this quarter to be Tesla's high water mark, stating on his Greenlight Capital Re call on Tuesday morning that Model 3 demand is now going to drop off.