This document discusses how traditional design processes must be adapted for startups with limited time and resources. It describes Mike Krieger's experiences at Meebo and co-founding Instagram. Some key approaches are to draw on prior experience, form hypotheses about what makes your product different, validate ideas through quick prototypes and social situations, and maintain a constant stream of learning from your audience. The document advocates adapting design thinking principles into "micro-processes" that scope work into short iterations with rapid validation opportunities.