I'm an introvert and had a great time when I was younger travelling with no money. It's not just meeting other people, I would say one of the most satisfying things about travelling is the risk. Risk is scary, it wakes you up, makes you feel alive. Being comfortable is wonderful, but if you are always comfortable I feel like a part of you goes to sleep. I was biking home on my normal comfortable route the other day and starting improvising another way home and got fairly seriously lost. I was late and it rained on me, but I felt happier.

"felt happier" when you got home, right?

It's an interesting point that risk makes you feel alive, I've experienced it myself and you feel brilliant afterwards.

Once I got trapped in a wave machine as a child and was being spun around underwater, but kept down the panic and managed to work out how to get out again. I was probably underwater for a total of 90-120 seconds. People were going crazy when I came back up but once I'd got my breath back I felt incredible.

I wonder if it's possible to apply this sort of risk-reward feeling to earning money? Is this what people feel like when they put everything into a startup? Money just sort of seems so mundane when compared to physical activity.

I felt happier when I was out in it too. One of my happiest memories is sitting under a tree in a thunderstorm eating muesli. I was in a country where I didn't speak the language and I had little money and no place to stay. I sat under that tree crunching away and being incredibly happy that I was having an adventure. My new resolution is to stop being so comfortable and get out in the world some more, even if it hurts.