The polka dot hearts.

 A logical hypothesis that comes to mind: An ecstatic blur of swinging love with an exeption.

The basic rule of Persig states that the number of logical hypotheses that can explain any phenomenon is endless.

Therefore, I do not like my first sentence. Never been a fan of exclusion. Unless it's a personal choice.

Another attempt for a logical hypothesis: An ecstatic blur of swinging love with a dot that's been with all other dots at least once and patiently waits for a new arrival to the party.