Each of these graphs is "smooth" because it incrementally adds new languages as n or m increases.
the embedded distances are reasonably faithful to the symmetrized dissimilarities: metric MDS achieves a low value of 0.20 on its "stress" objective, and we find that Kendall's tau = 0.76, meaning that if one pair of languages is displayed as farther apart than another, then in over 7/8 of cases, that pair is in fact more dissimilar.