Great points. The income isn't the main goal - my day job keeps me comfortable, and to be rational I'd at least like to make a return above what I could get on

Great points. The income isn't the main goal - my day job keeps me comfortable, and to be rational I'd at least like to make a return above what I could get on a term deposit, but with interest rates being as low as they are that's not an especially lofty goal. Definitely not trying to build a replacement income. With respect to risk, I'm ok with losing about 50-60% of that amount over 12 months, so long as by the end I've learned what I set out to. No specific industry in mind, but I'd like to deal with people whose needs I understand. The main goal is to learn those sales and marketing skills in a hands on way. I'd like to be building something as well, but that's secondary. And I'd like to do that by selling something useful and/or enjoyable for people. Physical products seem like a nice counterpoint to my day job which is a bunch of coding and abstract thinking, math and so on.