It's a very simple question, and one that I was asked recently while giving a private talk about exploration and adventure. At the time, my answer was rather formulaic, and covered a range of reasons - such as the challenge of embracing new and unknown experiences; the thrill of making new discoveries and, particularly these days, the sense of freedom that an extended period of digital detox brings.

But I wonder, is it deeper than that - do some people feel almost compelled to explore? Is it in fact - part of their self-nature DNA? I wonder.