Name the belief most likely to sink your idea if false, not the one easiest to test. Examples include willingness to pay, urgency of pain, or reliable acquisition channel. Write it as a falsifiable statement and promise yourself you will test this before polishing product, brand, or automation fantasies.
Define what evidence counts beforehand to avoid rationalizing. Examples: ten interviews where seven spontaneously mention the same costly workaround; a landing page converting qualified clicks at five percent; five prepaid trials at a provisional price point. Set red, amber, and green thresholds. Precommit to pivot, persevere, or pause depending on what the numbers say.
Cap spend and time per experiment to protect runway and focus. A scrappy test might cost under one hundred dollars and run seven days. List tasks, owner, and stop date. When the timer rings, analyze and decide, even if results feel incomplete. Momentum grows from decisive cycles, not perfect datasets or endless extensions.







Look for language that shows urgency, budget, and existing workarounds. Quotes like “we lose clients weekly because onboarding fails” or “we pay contractors to patch this manually” suggest painful stakes. Capture exact phrasing, not summaries. Consistent, emotive repetition across independent interviews often trumps a wobbly survey percentage laden with confirmation bias and sampling noise.

Early on, a handful of serious signals can be decisive: five prepaid pilots, a dozen qualified interviews showing the same workaround, or a ten percent response rate from targeted cold emails. These are directional, not definitive. Combine with context, compare week over week, and predefine what values trigger pivots or deeper investment immediately.

Assign red, amber, or green to each assumption weekly, with a one-sentence rationale. Greens get extended; ambers earn a sharper test; reds prompt redesign or pause. The color forces courage while keeping nuance in notes. Post your snapshot publicly or to an accountability buddy to strengthen follow-through and reduce quiet self-deception powerfully.
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