Not being really able to tell if you are watching a clone, drone, double, masked actor, CGI, historical footage, or the real person is kind of liberating. You just ignore all the "noise" at the individual character level, and only focus on structural matters or issues of principle.
YOU CAN TELL> MUMBLING, FALLING UP A FLIGHT OF STAIRS, FAKE FEET IN THE GRASS, STARING OFF INTO SPACE, ONLY EATING ICE CREAM!!! SIMPLE!!