Here:
https://theconversation.com/holographic-history-is-making-night-at-the-museum-a-reality-153256
Disney does something similar with a Holographic Abraham Lincoln.....
It used to be only the purview of large institutions.....
That still doesn’t seem the same to me. In the article at the link explained that historical figures are discussing the way in which they used to live thousands of years ago. This patent is for things going forward. Again, if I understand correctly. So for example you might have a social media account reporting to be that of Abraham Lincoln discussing the Trump impeachment.