This great painting was truly ahead of it’s time because Van Gogh provided us with the sense of moving. The subject is not but we are, be it consciously or subconsciously!
We see this in the chair, which may appear twisted at first glance, but Van Gogh actually has provided us with multiple views of the chair. We see this most clearly at the right of the where the seat is at a different angle than the rungs. We are viewing them from different places, in other words we would need to move.
We feel this very strongly in the floor which seems to drop down. What Van Gogh has actually done is painted it as we would view it in reality. When we view an actual chair we will drop our head or gaze downward to view the floor. Brilliant!
This is closer to reality because he has provided the sense or time.