Humans gain object permanence at around 3 months of age. This software does not yet seem to have mastered it.

Do we know what that view is showing though? If you tapped in to a 3-month-old's visual system you would see things disappear too, but that's not the full story. Maybe it's the same here?

Possibly, but it seems odd to me that they would hook it up to the raw visual system rather than showing the "current state" of the car's perception.

Yea, I understand there is noise in signals so some jiggly lines are OK, but the detected objects disappearing and jumping around seems horrible.

I think this is ok. The perception system has a threshold for the classifications and all the logic comes after that. It cant make reasonable decisions that humans can undersand on something that is 80% likely to be something. Its where where this tech is at right now. What is not ok is to call this FSD.