I wonder if emotion detection or even “lip reading” will be trained soon from eyebrow and eye movement. This would be a great way to detect whether someone is “smiling with their eyes” when wearing a mask.

Re: removing personal data. It’s hard to un-see something. Retraining from a dataset that has a sample removed will be costly and in some cases, impossible. What if a model is being continuously trained?

This is going to be a problem.