Hey @pieter, this is great stuff. I couldn't agree more with it. Actually, I use the same concept to get all my business ideas. I made this 3 part guide that handles finding your passion and niche, identifying your market, and validating your business ideas. You might find it useful!

Enjoy and keep the great content going!

PART1: https://steemit.com/money/@menta/guide-how-to-get-a-winning-business-idea-going-part1
PART2: https://steemit.com/money/@menta/guide-how-to-get-a-winning-business-idea-going
PART3: https://steemit.com/business/@menta/guide-how-to-get-a-winning-business-idea-going-part3