FWIW, here's a quote from the Bobrow 1972 TENEX paper that I did not include (as the post was getting too long): "Three figures are better than just the last o

FWIW, here's a quote from the Bobrow 1972 TENEX paper that I did not include (as the post was getting too long): "Three figures are better than just the last one, because from these the user can predict the trend as well as note local variation."