Last night I dreamt that I looked up my bar results on the Internet (the NY bar is scheduled to release the results in the real world sometime in “mid-November”). This, by itself, is unremarkable.
However, I dreamt that I looked up the results three times. And every time I looked it up, I knew that I had been dreaming the previous times I’d looked it up.
How do you know that this isn't the fourth version of the dream?