The Actuary Decides What’s Trendy

Somewhere in a glass tower in the City of London, a person with a spreadsheet and a very calm face is deciding whether your next big thing is allowed to happen. Not a magazine editor. Not a TikTok algorithm. An underwriter.

This sounds like a conspiracy theory, but it's really just how risk works. And once you see it, you can't unsee it.

What is a loss curve in insurance?

Every trend that makes it to the high street has, at some point, passed through a room full of actuaries asking a very specific question: can we draw a loss curve around this? A loss curve is essentially a map of how often things go wrong, how badly, and how predictably. For anything an insurer touches – a new product, a new activity, a new piece of kit – they need enough historical data to sketch that curve before they'll agree to cover it.

If they can sketch it, the trend gets a price. If it gets a price, it gets liability cover. If it gets liability cover, it gets a supplier, a retailer, a brand, a launch event, and eventually a shelf in Boots.

If they can't sketch it because the thing is too new, too weird, or the injury patterns are too unpredictable, the price comes back either astronomical or nonexistent. Either way, the trend quietly doesn't happen.

Can a business get cover for something genuinely new?

E-scooters are an interesting case. The technology existed for years before any mainstream rental scheme arrived in the UK. What held it back wasn't engineering or demand – it was that insurers couldn't agree on how to model the risk. Was it a bicycle? A moped? A pedestrian with wheels? Until the liability question settled down, the rollout stayed messy and piecemeal.

Trampolining parks moved faster because soft-play centres had already given the industry a usable dataset for how children hurt themselves in foam-padded environments. The actuaries had something to work from. The parks arrived.

DIY laser treatments – the kind of skin device marketed online as "clinical grade" – are in the strange middle zone right now. Salons can get cover for supervised treatments. Home devices are a different story. The claims data is thin, the user behaviour is impossible to model, and the result is that the category keeps almost breaking through without ever quite doing so.

For a genuinely thoughtful piece on how the luxury travel industry handles its own version of this unspoken pricing problem, read The Only Honest Review of a Luxury Holiday Comes From Someone Who Can't Read at https://savingourplanet.co.uk/the-only-honest-review-of-a-luxury-holiday-comes-from-someone-who-can-t-read/.

What This Means for the Next Big Thing

The cheerful upshot is that trends which look unstoppable are usually more than they seem – they've already survived a room full of sceptical people with calculators. The bleaker reading is that some genuinely interesting ideas never arrive not because nobody wanted them, but because the loss curve wouldn't cooperate.

So next time a trend lands and feels oddly inevitable, it probably is. The influencers just got there after the actuaries had already signed off.