An unwritten "founder code" exists in Silicon Valley. A key violation is abandoning a well-performing, venture-backed company to start a new one in a hotter space (e.g., AI). This prematurely sells out investors and violates the trust placed in the founder.

The greatest danger of building outside the SF bubble is not a lack of capital, but the absence of a peer group that normalizes struggle. Without that support, founders are more susceptible to the surrounding skeptical culture and more likely to give up during inevitable downturns.

More devastating than financial pressure, the emotional toll of employees visibly losing belief in the founder's vision is the most painful part of a startup downturn. This erosion of trust is a critical, yet often undiscussed, leadership challenge.

As a founder, you'll likely experience a predictable social journey. First, people dismiss your ambition. Then, they diminish your early efforts. Once you gain traction, they become fans asking for perks. Finally, they claim they supported you all along. Understanding this pattern helps you ignore the need for external validation.

Deep tech startups don't have unique interpersonal problems. The same human OS bugs—communication breakdowns, ego, avoiding hard conversations—that sink a restaurant or a marriage will also sink a highly technical venture. The context changes, but the core human errors do not.

In a market with extreme growth outliers, the opportunity cost of supporting a slower-moving company is immense. This pressure causes both investors and founders to quit on ventures much earlier, seeking to redeploy capital and time into potential breakout hits.

New ventures succeed through obsessive customer focus. As businesses scale, leaders often turn inward to focus on internal metrics, processes, and stakeholders. This shift away from the customer is a leading indicator of failure. Success is a function of customer proximity.

Horowitz argues that the critical failure mode for founders isn't making mistakes, but the subsequent loss of confidence. This leads to hesitation on necessary but painful decisions, like reorgs, creating a power vacuum and political chaos that ultimately sinks the company.

Even with visible engagement metrics, founders often feel isolated because much positive feedback happens privately in "dark social" (e.g., internal shares). This silent resonance, which metrics can't capture, leads to self-doubt about their impact.