What does “get out of the building” mean?

“Get out of the building” is Steve Blank’s most-quoted directive: founders cannot validate hypotheses or discover real customer needs from a conference room. The phrase encapsulates the practical imperative of customer development — leave the office, find prospects in their environment, and engage them about problems before assuming you understand them.

Why office discovery fails

Three reasons. (1) Selection bias — customers who come to founders (via inbound interest, referrals, or pre-existing relationships) are systematically different from the broader market the company must serve. (2) Performance distortion — when customers come to your office, they’re in “interview mode” and give you what they think you want to hear. In their own context, behaviour and needs are different. (3) Founder hubris — sitting in the office reinforces internal assumptions. External engagement disrupts them.

How to do it well

Four practices. (1) Target the right people — early customer-discovery interviews should focus on the prospect persona, not adjacent personas. Talking to 20 wrong-segment prospects is worse than 5 right-segment prospects. (2) Go to their context — visit their office, watch how they work, listen to their unprompted conversations with colleagues. (3) Ask about past behaviour, not future intent — “what did you do last time?” beats “would you use this?” by orders of magnitude. (4) Don’t pitch — once founders shift to selling, the prospect shifts to politeness. The session ends as discovery.

The 100-customer interview heuristic

YC partners and other early-stage investors often suggest 50-100 customer-discovery interviews before initial product investment. This sounds excessive until founders realise that signal compounds: the first 10 interviews surface obvious problems; interviews 11-30 reveal segment-specific nuance; interviews 31-100 produce the pattern recognition that becomes unique insight.

Remote era considerations

Post-COVID, “get out of the building” partially became “get out of Slack.” The structural insight is the same: synchronous, contextual, prospect-led conversations beat asynchronous, structured, founder-led ones. Video calls partially substitute for physical visits, but founders should still aim for in-context observation — recorded user sessions, on-site visits to enterprise prospects, demo days at trade shows.

Türkiye context

Türk founders building B2B products particularly benefit from physical site visits — Anatolian manufacturing customers, regional distribution partners, branch-banking customers in Tier-2 cities. Istanbul-office-based assumptions about Türk SMB needs frequently miss the realities of customers in İzmir, Bursa, Antalya, and Kayseri. Physical “get out of the building” produces dramatically different product priorities than remote inference.

Related: Customer Development, Mom Test, JTBD, Unique Insight.