I just read this article, pretty interesting.
https://www.allkpop.com/video/2020/02/vr-technology-helps-a-mother-reunite-with-her-deceased-daughter?fbclid=IwAR1LWrD_I4ONIrC9fTbCXb0rO7pvHtvXdjoVSDYMsQss9aCvM3E_GmAl5zM