01
The foundation
Learning that data only matters when it changes a decision.
I started as a media planner at Promoseven, building campaigns for Coca-Cola, McDonald's, L'Oréal, and Nivea. The work was fast and the clients were demanding in the way multinationals are — they needed every decision justified by data, and they needed it quickly.
That's where I learned something that has shaped everything since: data is only useful when it changes a decision. Most agencies at the time gave clients reports. I wanted to understand why those reports so rarely changed anything. The gap between insight and action turned out to be the most interesting problem in the building.