I wonder if your shoelace became untangled prior to mounting the Uni - or if the extra pedaling required to sustain balance on a single wheel was the force that

I wonder if your shoelace became untangled prior to mounting the Uni - or if the extra pedaling required to sustain balance on a single wheel was the force that undid the lace (single tied means you did not plan for your novel experience of a "longer" path - a tight double keeps mine intact during vigorous activity). Looking down seems risky, because a Uni implies increased balance difficulty and frequent knowledge update of path ahead, perhaps more effort than a Bi which grants extra available mental real estate at the cost of increased local noise pollution. I suppose the lesson you are trying to teach us is that the drawback of being silent (via Uni) is that one must spend extra time during the preliminary equipping phase (shoelace). At first glance I wondered about a flailing shoelace becoming a tangle hazard (gears/chain/rotation within proximity).