It's not too late to break into AI — and it doesn't really matter where you're coming from. That's what Business Insider learned while speaking to dozens of people working in AI, from recent college graduates to mid-career job switchers to those on the cusp of building their own AI companies. Their stories took us from India and Singapore to Silicon Valley and Sydney , and demonstrate that there are myriad paths into this booming space. We broke the routes of entry into four categories —