Is this a comfort or the creepiest idea you've ever heard? AI can take your dead loved one's social media posts... and turn them into a HOLOGRAM you can chat to in the kitchen

Side by side, four young cousins chat with their grandmother via a video link. 'What's your favourite sport?' one of them asks Marina Smith as she reclines in a comfy armchair in her Nottinghamshire home. 'It used to be tennis and hockey and I am also very interested in horse-jumping,' the 87-year-old replies, before adding: 'But I don't ride a horse!' The response elicits a chuckle from her grandchildren who continue to talk about her likes and dislikes, as well as enquiring what it's like to be a grandparent. Several weeks before this perfectly natural-looking inter-generational conversation took place, Mrs Smith had passed away.