General Catalyst managing director Hemant Taneja describes a major shift in the venture capitalist industry over the last 20 years: The shift from investing in companies building efficiency-driven software to companies redesigning entire social systems, like schools and healthcare. Amid this paradigm shift, he offers three pieces of advice for aspiring VCs: Spend some time as an entrepreneur yourself, become an expert in something, and think of your future career as enabling entrepreneurs to change the world for the better.