Aaron Holiday is a technical operator-turned-VC who built high-frequency trading algorithms at Goldman Sachs and electronic trading systems at GFI Group before co-founding 645 Ventures, where he developed proprietary software called Voyager to systematically source and score companies beyond personal networks. He co-authored the VC Investment Triangle framework and applies quantified learning from analyzing thousands of startups to adjust investment decisions, such as de-emphasizing elite school pedigree in favor of domain expertise and problem alignment.