The most important lens you can adopt is simple: stop thinking like a team member and start asking yourself the real questions. If you were a customer, would you actually buy into this? As an investor, would you really ape it? As a user, would you genuinely hold and support it? This shift in perspective changes everything. When you operate from the investor-customer-user mindset rather than staying locked in team thinking, you naturally build better products and make smarter decisions. And maybe more importantly, you fail faster—which means you learn faster. Those early failures become feedback rather than setbacks.