While the intention was always to portray a figure, this did not start out as a rider. In fact, the original plan called for filling the space below the obviously-male figure’s legs until it reached the borders of the page. Boredom set in. People who look at the picture now often miss the tiny foot sticking out of one leg, implying not that the figure is riding a futuristic vehicle, but squatting and observing a pattern.
Either is fine. Art is interpretation.