The Sunday Times’ tech correspondent Danny Fortson brings on Karsten Temme, co-founder of Pivot Bio, to talk about engineering microbes (4:30), the problem with fertilizer (7:50), why agriculture needs to be remade (12:00), starting a company (15:15), finding farmers (20:00), tuning their microbes (23:35), the century of biology (30:10), overcoming skeptics (31:40), raising $430 million (36:50), and when birds ruined his day (37:50).