Avishai Abrahami works late, sleeping until 11:30 AM. This gives him hours for deep thinking and forces his team to resolve minor issues independently before he arrives, fostering a more mature organization and protecting his own focus time.

Calacanis invested $200K in a former employee not for a specific idea, but because the founder consistently demonstrated high product velocity, world-class design, and capital efficiency. This indicates that for some savvy investors, proven execution ability is the most critical early-stage signal.

Employees at large companies who independently work nights and weekends on projects outside the roadmap, driven by customer obsession, are exhibiting the key traits of a founder. This behavior, while potentially disruptive to their team, signals a strong, innate entrepreneurial drive ready to be unleashed.

The best founders treat their startup not as a job, but as an "affliction"—an unshakable obsession. This deep-seated drive signals to investors the resilience required to overcome the immense challenges of building a company from scratch.

Brian Singerman's venture strategy was almost entirely focused on founder assessment, making up over 98% of his decision. He famously doesn't read financial reports or use spreadsheets, instead concentrating all his effort on one question: is this founder the best in the world at something novel?

The founders were co-workers before becoming friends and then business partners. This sequence allowed them to vet each other's work ethic and resourcefulness in a professional setting, de-risking the co-founder relationship far more effectively than friendship alone could.

While assessed during diligence, the true caliber of a founder—their passion, authenticity, and ability to "run through walls"—becomes starkly clear after the deal closes. This distinction is not subtle; the impact of a truly exceptional founder versus an average one is immediately evident in the business's trajectory.

When diligencing a startup, Kantos Ventures has learned that the best founding teams demonstrate mind-blowing progress in just one week. This extreme velocity is a key indicator of a team's potential, as that speed compounds over time, creating a massive gap between them and their slower competitors.

Aditya Agarwal joined Facebook when it had under 10 employees, despite not being a user. The decision was based purely on the raw intelligence and intensity of Mark Zuckerberg and the fun, hard-working environment, highlighting that team caliber can trump product analysis in early-stage career bets.