Concentrated-Capital Play: Sabertooth VC Bets on Patience Over Velocity

Justin Ernest founded Sabertooth VC in 2025 to pursue concentrated, long-term positions rather than the diversified deployment most VC funds employ. The timing signals a specific thesis: when IPO windows narrow and LP scrutiny on returns tightens, fewer bets held deeper may outperform rapid portfolio construction. Ernest is simultaneously an advisor at Playground Global, Andy Rubin's $1.2 billion deep-tech fund, positioning him within networks of technically complex, capital-intensive ventures where patience compounds advantage.