A little OT, but there was a XKCD-comic about a 'space-layer' made of a 'polygone-structure' - and I for for the abstract first thought, 'Randall better had written about a (for the 2D-shema) five-sided-(pentagon)-layer', cos if you think -just for a moment - about measuring and data-gathering-structures for mapping space maybe... - after you measured the size, temp, coordinates, and maybe 'relations' (for an example: possibility for water -in a survival-scenario... it was about astronomy) - I realized, the pentagon-figure 'shrinks' in a triangle, but 'You better have one more data-point open -for maybe future purposes'

Now I feel a bit fuzzie cos just 5 Minutes ago there was a posting here on HN someone saying something like: 'Somebody made an UI and for years it became the main theme... ' (-;