In this week’s newsletter: To see where an IT flaw became a crisis, you have to look past the technology altogether. Plus, Substack’s biggest names jump ship
Social media firms have faced scrutiny from Congress over their impact on young users, but parents who have lost kids to online harm are now leading the charge
YouTube robotics tutorials helped 17-year turn his concern for his grandmother into a device that alerts carers if Alzheimer’s patients fall or wander off
We used to look to magazines, store assistants and bloggers to help us decide what to buy. Now the publishing site has become the go-to spot for style advice
Once confined to weightlifting, workout hype tracks have become a hugely popular (and profitable) genre online. Jenny Valentish goes in search of the daddy of them all