Will the "tram problem" become the biggest difficulty affecting the landing of automatic driving? Will the "tram problem" become the biggest difficulty affecting the landing of automatic driving? Will the "tram problem" become the biggest difficulty affecting the landing of automatic driving? Will the "tram problem" become the biggest difficulty affecting the landing of automatic driving? Will the "tram problem" become the biggest difficulty affecting the landing of automatic driving? Will the "tram problem" become the biggest difficulty affecting the landing of automatic driving?