Top Comment

Kalshi, Polymarket, and gamifying the future

Over the past year, prediction markets like Kalshi and Polymarket have exploded in popularity, as users bet on everything from battles in Ukraine to sex toys being thrown at sports games. So with concerns over both regulation and the prevalence of insider information inviting intense scrutiny, Matt has been examining how these platforms really work.Also on this episode, is the recent rise in measles cases in London down to disinformation? With several proponents of vaccine scepticism being welcomed back to social media, Marianna explains how these often discredited accounts are being amplified online.And, as the viral story of Punch the monkey and his orangutan companion drives mass sales of an Ikea soft toy, we consider how brands are increasingly looking to profit from organic content through 'trendjacking'.Top Comment is hosted by Marianna Spring and Matt Shea. The series producer is Laurie Kalus. The social producer is Sophie Millward. The technical producer was Jonathan Greer. The editor is Justine Lang. The senior news editor is Sam Bonham.If you want to get in touch about something that's popped up on your feed, our email address is topcomment@bbc.co.uk or you can send us a WhatsApp on +44 330 123 9480.

Decline porn explained, and why Clavicular is misunderstood

If your feed has been flooded with content about the 'dangers' of western cities like London or San Francisco, you're not alone - it's part of a growing phenomenon known as decline porn, and it's driving narratives of political neglect and uncontrolled immigration.On this episode, Marianna examines a niche take on this trend - AI videos which falsely portray zoos and waterparks in Croydon. She tracks down the original creator of these posts, and explains why they might not be as innocent as they seem.Also, Matt has been investigating Clavicular - the internet's man of the moment. After signing up to his 'looksmaxxing' course, we discuss the controversial relationships propping up his virality, and what the mainstream media is getting wrong about the streaming sensation. Top Comment is hosted by Marianna Spring and Matt Shea. The series producer is Laurie Kalus. The social producer is Sophie Millward. The technical producer was Gareth Jones. The editor is Justine Lang. The senior news editor is Sam Bonham. The commissioning producer is Nathan Jones. The commissioning editor is Rhian Roberts. If you want to get in touch about something that's popped up on your feed, our email address is topcomment@bbc.co.uk or you can send us a WhatsApp on +44 330 123 9480.

Introducing... Top Comment

In this brand new weekly show, BBC correspondent Marianna Spring and investigative journalist Matt Shea talk through the stories behind your social media feed. From global events that go viral, to bizarre moments that spill into real life, Marianna and Matt unpack the trends, theories and digital chaos shaping our world.

Marianna in Conspiracyland 2: 6. The Inquest

Can Coroners' courts cope with conspiracy? It’s been more than a year since Paloma Shemirani died after rejecting chemotherapy in favour of alternative methods. Her brother Gabriel blames the beliefs of their mum Kate - who is a prominent British conspiracy theorist - for his sister’s death. This summer, he’s found himself face to face with his mum for the first time since Paloma died at an inquest into how and why she lost her life. After investigating - and revealing - what happened to Paloma for the first time almost four months ago, the BBC’s social media investigations correspondent Marianna Spring is back following the twists and turns of an inquest that has felt like Conspiracyland colliding with the real world. In the coroner’s court she see’s medics questioned by conspiracy theorists and tense family feuds unfolding in real-time. Could Paloma have been saved? And can society handle Conspiracyland?

Marianna in Conspiracyland 2: 5. A collective immune system

Can people fight back against medical misinformation? In the months after Paloma’s death, her brothers say they want to prevent other deaths, and they believe social media companies should take stronger action against medical misinformation. Meanwhile her Mum, Kate Shemirani, takes to social media to share a different account of her death. She has promoted a range of unproven theories on social media and podcasts about how Paloma was murdered by medical staff. The BBC has not seen evidence to support this. The BBC’s social media investigations correspondent Marianna Spring interrogates whether and how some politicians and social media companies are emboldening anti-medicine conspiracy theorists, and speaks to a former cancer surgeon and patient trying to bust cancer myths online. Host: Marianna Spring Producer: Anna Harris Sound Engineer: Tony Churnside Editor: Sam Bonham Commissioning producer: Nathan Jones Commissioning editor: Rhian Roberts This was a BBC collaboration with Panorama.