Very interesting! I can see how your experience was definitely a sequence, one thing following another. Mine was entirely visual, drop high, drop middle, drop low, over and over again. I’ve remembered it as like three frames in a movie — which indeed is a sequence. It never occurred to me though that it was a causal sequence - the high drop causing the middle drop. What was fascinating was just to watch them, drop drop drop. Over and over. So, there was a sense of repetition, even though each frame was unique.