John Forbes brings an operator-first background to deep tech investing, having served as Chief of Staff at climate startup Perimeter and helped build it from zero to product-market fit before joining Julian Capital and Deep Checks. He's known for seeking founders who reveal "absolutely absurd" secrets about the world that almost no one else knows, using these non-obvious insights as a core filter for finding opportunities in frontier markets. John Forbes brings an operator-first background to deep tech investing, having served as Chief of Staff at climate startup Perimeter and helped build it from zero to product-market fit before joining Julian Capital and Deep Checks. He's known for seeking founders who reveal "absolutely absurd" secrets about the world that almost no one else knows, using these non-obvious insights as a core filter for finding opportunities in frontier markets.