In this special micro-episode of ETL, Stanford lecturer Ravi Belani reflects on his key entrepreneurial takeaway from 2020. In a year that defied expectations, he notes that most companies start with good ideas but ultimately fail because founders spread their focus too thin. Belani shares clips from two 2020 ETL talks — one from PlayVS founder and CEO Delane Parnell and one from Zoom founder and CEO Eric Yuan. Both Parnell and Yuan, observes Belani, exemplify the laser focus that drives successful ventures.