Be Right Back and his vision of deceased people being brought back via their social media footprint this vision already is on the brink of becoming reality, possibly due to the success of chatgpt.
This in turn might be the reason why Black Mirror will return with a 6th season - Brooker seems to be pretty spot-on with his visions.
My view/opinion, ok? The matter is a very aged, thus many thousands years ago mediumship in the Bible told that the dead people were talking, communicating and had appearead to sad people. And then equivalent avatar project 2050 in the future. Yup scarce material, but picture can tell you.