At the 2026 TechCrunch Disrupt event, prominent tech leaders discussed what truly drives rapid startup growth, emphasizing that early sales alone do not guarantee long-term success. Luke Arno from Lovable, Ben Broca of AI startup Polsia, and Tomasz Tunguz of Theory Ventures shared insights on how founders can position their companies for sustainable progress in the crucial first 90 days. They caution founders against mistaking quick initial revenue as a sign of readiness to scale without a repeatable and reliable go-to-market approach.

Ben Broca pointed out the difficulty startups face in securing product-market fit in today’s landscape, especially amid the rise of AI products that competitors can easily replicate. Reinforcing this, Arno advised startups to focus on developing learning density—essentially gaining a clear understanding of where their customers are and how to cater to them consistently. Rather than rushing to build a broad sales operation, founders should identify patterns in customer acquisition that prove scalable, distinguishing genuine product-market fit from one-off sales wins.

Lovable’s trajectory exemplifies this approach, having grown to over $600 million in annual recurring revenue (ARR) and a valuation exceeding $13 billion, backed by more than $700 million in funding. Tunguz highlighted that although Lovable’s meteoric rise sets a high bar, such explosive growth remains rare. Still, he acknowledges the immense pressure startups face today because funding rounds have expanded substantially, with seed deals now ranging from $5 million to $500 million compared to more modest amounts in previous years.

A recurring theme from the speakers was the importance of building strong customer relationships and community engagement to maintain loyalty beyond initial hype. Broca emphasized consistently communicating with customers through emails, events, and direct conversations to grasp what truly keeps them engaged. Overall, founders should prioritize repeatable customer acquisition strategies and long-term engagement over chasing early revenue spikes to ensure their startups achieve durable growth.