The process isn’t at all one of seeing first a triangle, then a square, pentagon etc. up to e.g. a fifty-sided polygon and then the circle coming; no, we see a triangle, a square etc., up to maybe, an octagon, then we only see polygons with sides of varying length. The sides get shorter, then a fluctuation towards the circle begins, and then comes the circle.

Wittgenstein, Philosophical Remarks