tbh I would love to see full length video walking through the work that Kepler did with actual numbers, to me that part remained bit unclear. Especially how to get some quantitative values out of the analysis, considering how the eccentricity of the orbits is not really something easily visually discernible.

> In principle, using the measurements to all the planets at once could allow for some multidimensional analysis that would be more accurate than analyzing each of the planets separately

(from the blog post)

I'd also love to see this idea expanded further. Intuitively it feels like adding Venus into the calculations should dramatically help constrain the orbit of Mars, but how exactly that would work out I'm not sure.