If someone you loved died, would you want to keep chatting to them? Now you can - with an AI griefbot. The idea is you use their texts, emails and voice notes, as well as photos and videos, to train AI to reply in the dead person’s tone and style. It can be through text-based conversation or even an AI-generated voice.

The "digital afterlife" industry is now worth more than $130 billion. Is this just the latest way for humans to try to maintain a relationship with their deceased loved ones? Or could it negatively affect the grieving process, if people start to believe that person is actually still alive through the technology? And what might companies do with all the data we input?

Tech journalist Tamzin Kraftman explains this growing area of tech and the pros and cons of using griefbots. Andy Langford, clinical director at Cruse, a bereavement charity in the UK, gives us his thoughts. And we hear from Muhammad Ahmad in the US, who developed his own grief bot of his dad.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy, William Lee Adams and Chelsea Coates Editor: Verity Wilde

Smart glasses are big business, Meta, one of the leading manufacturers of the glasses say that last year they sold seven million pairs globally. But new designs that resemble regular sunglasses or reading frames mean they can be difficult to spot. Users can make phone calls, follow maps, and use AI assistants completely hands free. They can also use the built in camera to take photos and record videos subtly - this is part of the controversy. There have been cases of people being filmed secretly and posted online without their consent.

So how many people are buying smart glasses and how significant is the risk to privacy? BBC technology reporter Laura Cress tells us about the tech that goes into smart glasses and investigative reporter Georgia Poncia talks us through the concerns.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producer: Benita Barden and Emma-Louise Amanshia Editor: Verity Wilde

Backrooms. Obsession. Bring Her Back. These are some of the biggest Hollywood films from the past 12 months and they have one thing in common: they are all horror movies directed by YouTubers.

What’s behind this new wave of directors coming from YouTube and why is horror becoming more and more popular? BBC journalist and horror obsessive Mel Ramsay explains how the likes of Kane Parsons and Curry Barker have shown how their success online can be translated to the box office.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams, Adam Chowdhury, Benita Barden and Chelsea Coates Editor: Verity Wilde