Today we seemingly have the ability to measure everything. But sometimes too many metrics can obscure, as opposed to illuminate, the way forward. What truths are immutable, and how can we be sure that the “most measurable medium” remains as brand-friendly as possible? In this metrics manifesto, we’ll take a brand advertiser-centric view of the measurement ecosystem and try to sort it all out. We measure everything we can… but are we measuring everything we should?