I think the ONLY useful way to use it is how I do, which is just every couple of years to track how my own views and beliefs have changed throughout me aging (still just for fun/personal interest!). It’s not perfect but it can at least measure the change in a single person. To nobodies surprise I started bottom left, close to centre 10 years ago, and now I’m significantly closer to the bottom left corner

Be sure to open and zoom in for extra sea captainness