The registers with cashiers also have scales and cameras and systems that are built in to determine when a CSM is required for things like overrides. The tech is not appreciably different. It's not automation.
Mini_Moonpie
This isn't automation though. The self checkout tech is the same tech that a cashier uses. It's not automated. A human still does the work, they just don't get paid for it.
PBS has a good video on it: https://youtu.be/et7XvBenEo8?si=w2ZJDnYQbWDY3TgR
The summary is that scientists don't have a single, simple equation that they can use to precisely predict the orbits of three bodies based on the initial positions and velocities of those bodies like they can with only two bodies (the two-body problem). The solutions they have are either approximate solutions (not precise, but close enough to be useful), equations that apply only to specific types of orbits and therefore can't be used to predict other three-body orbits, and a general equation that is so ridiculously long that it is not really usable. I am also just a layman, so take my summary with a grain of salt, but hopefully the video will help.
You can donate directly to Godot or FNA if you want to show support and don't think that you'd enjoy Terraria. Personally, I love Terraria and have bought it for pretty much every system I own and everyone I know. I got interested in it after watching TotalBiscuit and Jesse Cox play it. (I can't believe that was 12 years ago!)
You know, a cute blouse with a kicky pair of trousers. An outfit.