Pubblicato in Sauropod Vertebra Picture of the Week

An interesting conversation arose in the comments to Matt’s last post — interesting to me, at least, but then since I wrote much of it, I am biased.  I think it merits promotion to its own post, though.  Paul Graham, among many others, has written about how one of the most important reasons to write about a subject is that the process of doing so helps you work through exactly what you think about it.