"To build a great business, you need to tackle a problem," says YouTube co-founder Steve Chen in conversation with fellow tech legend Patrick Grove, co-founder and CEO of Catcha Group, on Crazy Smart Asia. The duo speak with 14-year-old youth tech advocate and Al researcher, Zara Khanna, about the disruptor's blueprint, why they'd take an A-plus hustle over a B-plus business plan any day and what it takes to be a one-in-a-billion entrepreneur.