London-based product design & development, building human-first intelligence products for the synthetic age.

Our passion is designing and building products that feel human first. Not just built. Not just tools. But turning complex ideas into culturally aware, contextually adaptive, and emotionally engaging products that feel alive for the machine-human world. AI is not just a tool, but a new way of working that frees humans to breathe, to think, and to work together.

Over the last 20 years, we've had the privilege to work with global brands including Google, IBM, Air New Zealand, Kpler, EE, News UK, Tesco, and The Economist, as well as leading digital agencies and startups across the UK, Middle East, and Oceania.

Analysing Christmas Adverts

#insights
2025-12-13

Mass Vision is a persona-based video sentiment tool: a synthetic screening room for ads. You upload a film, synthetic personas watch it, and narrate reactions moment by moment, explaining why, tied to identity, lived experience, ethics, and context. The output is a tension map (not a safe average): where the same scene splits audiences, who feels seen, and who feels repelled. The Christmas ads analysis shows why this matters: social sentiment gave broad takes after launch; Mass Vision shows the segment mechanics underneath, at specific moments. Run it in minutes, iterate while changes are still cheap, and stop learning the hard way in public.

holdmass.com/p/analysing-christmas-adverts

Mass

#live#AI
2025-10-17

My mum thinks it's cool. My friends think it's as odd as a cat with wings. Getting human opinion is hard. It's time-consuming, expensive, and we're not sure we can trust the result. That's why we built Mass, a platform to deploy hundreds of synthetic human personas that think, reason, and respond like the target audience. They're brutally honest and unfiltered, giving a real sense of what audiences wants in minutes, not months. And at a fraction of the cost. Understand perspectives, validate messaging, explore positioning, and more before committing to the real human research.

www.holdmass.com

If you're looking for a human-first approach to product design and development. Either hands-on in the trenches, or remote consultantancy. We can help you build your product.

If you'd like to collaborate, discuss strategy, or explore how we can help, please get in touch with me at hello@thingsthat.com.