Duolingo is not being mispriced as a language app.
It is being mispriced as software.
The market is evaluating feature substitution.
But the product operates as a global habit system — and behavioral infrastructure is far harder to replace than software.
This analysis shows how trust now operates across institutional, platform, and behavioural layers — and why brands are increasingly judged by how their systems perform, not what they say.
UK grocery is no longer just a price war. It is a contest over which supermarkets govern money, time, trust, identity, and everyday household behavior.