Let me be clear: in both cases we are just making assumptions. We do not really know what our potential users will really respond to, what they will understand or what they’ll hate until we really see them using it. So whether we spend the first 4 weeks trying to learn what they like, how they behave and whether they’re a “mobile native” or not, OR just make assumptions then test them 4 days later, we’re still only seeing the really valuable, usable data once they use the product (or the very realistic prototype of it).
User Research is Overrated
Jonathan Courtney

Amen to that.

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