For #WildcardWednesday a #math #sportsEcon problem inspired by the #WorldCup and #RealityTV: Which structure is more likely to result in the best contestant winning, a single elimination tournament or a format in which all contestants compete and the worst performing one is eliminated each match?

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#WildCardWednesday
I release any random thought into the #federverse. Today, an unexpected #math relearned since becoming a #dad:

The ease of putting a shape into the matching hole is a function of its 3-dimensional rotational symmetry. Circle - easy, infinite rotations plus flipping. Star- thought would be hard, really not (5. rotations and flipping symmetry), unexpectedly difficult is the 3-4-5 right triangle as it lacks rotational symmetry in the plane and is asymmetric if flipped!