https://observablehq.com/@mbostock/spherical-fibonacci-lattice https://observablehq.com/@mbostock/spherical-voronoi http://extremelearning.com.au/how-to-evenly-distribute-points-on-a-sphere-more-effectively-than-the-canonical-fibonacci-lattice/

Ah ha ! Thanks for pointing these out. I knew I'd already seen and played with Mike's notebooks, but couldn't find them for some reason :) I've changed the notebook to "link share". Would be nice to implement the "more effective" strategy.