Millie Liu grew up in Shenzhen during its rapid transformation from blank canvas to megacity, which shaped her comfort with backing founders building in uncharted territory without established playbooks. She applies a distinctive screening test to deep-tech startups by asking whether a small team of Google engineers could recreate the technology in under a year—if yes, she considers it insufficiently defensible for investment. Millie Liu grew up in Shenzhen during its rapid transformation from blank canvas to megacity, which shaped her comfort with backing founders building in uncharted territory without established playbooks. She applies a distinctive screening test to deep-tech startups by asking whether a small team of Google engineers could recreate the technology in under a year—if yes, she considers it insufficiently defensible for investment.