I believe eye tracking systems have been used for weapons targeting in F-35s for about 10 years. They wouldn't be using it for that usecase if it wasn't pretty accurate
If you’re in a fighter jet and there’s an enemy aircraft you don’t need much encouragement to look at it, whereas with computers people look away from the UI element they are interacting with all the time, for example I’m typing on the iOS keyboard now but looking at the text.
Also the number of objects in a fighter jet is going to be rather small so the radius for selection around each object can be large.
True. But an F-35 cockpit has more space for cameras/etc and a slightly higher price. I also suspect selecting from very close together (in your field of view) enemies isn’t a too common.
On the other hand on a site like HN there are a ton of very small targets right next to eachother.
