We were hosting a Meetup on robotics in Australia and it was question time. "How do I get into artificial intelligence and machine learning from a different background?" Nick turned and called my name. I was backstage and talking to Alex. "Here he is," Nick continued, "Dan comes from a health science background, he studied nutrition, then drove Uber, learned machine learning online and has now been with Max Kelsen as a machine learning engineer for going on a year." Nick is the CEO and Co-founder of Max Kelsen, a technology company in Brisbane.

I'll respond more specifically for deep learning. You can get a broad idea of deep what deep learning is about through tutorial lectures that are available from the Web.