When I gave the talk about vertebral orientation for the 1st Palaeo Virtual Congress at the end of 2018, I had to prepare it as a video — so I saved it on YouTube so it would outlive the conference: Having figured out the practicalities of doing this, it made sense to similarly make a permanent record of my SVPCA 2019 talk, The Past, Present and Future of Jensen’s “Big Three” sauropods : I promised back then that I would put