I disagree on this segmenting for many reasons, but particularly because the idea that you are solving for your own problem while also building for the future are not mutually exclusive.<p>Same with top-down/bottom-up. I'll use my two start-ups as examples.<p>Firstly, at <a href="https://soundmind.co" rel="nofollow">https://soundmind.co</a> we're setting out to help you get the best sleep possible.<p>1) Scratch your own itch - I'm an insomniac and even when I do sleep, I never feel rested, so I'm solving my own problem<p>2) Idea Extraction - I then spoke with other people who have the same problem, and even people who don't have the problem, to understand what they want. This built on the initial idea, and how to market it.<p>3) Idea Safaris - Not knowing much about sleep I dove into research and speaking to experts to understand more about the problem they are trying to solve,<p>4) Live in the future - I realized that everything we do around improved sleep is focused on affecting our physiology, but sleep is neurology, so we're focused on using the latest in neuroscience to improve your sleep<p>My other startup <a href="https://ayvri.com" rel="nofollow">https://ayvri.com</a> we create 3D virtual world maps, mostly for sports.<p>1) Scratch my own itch - as an avid outdoorsman, if I want to share my adventures, or prepare for an event like a race, there isn't a good way to visualize what the terrain and experience is like<p>2) Idea Extraction - speaking to other people, we found out that if you were a paraglider, pilot, wildlife researcher, commercial drone operator, you had similar issues, but of course, these brought more ideas and feature requests to the table<p>3) Idea extraction - Though we spoke to people in the mapping space, and some in video, there wasn't really an area of expertise, so I don't think this really qualifies<p>4) Living in the future - we recognized that what we had built was a low-level volumetric video experience which could be made by anybody with just a GPX file. This brings us to the future of any photo and video captured in the outdoors can be made into a 3D volumetric experience.<p>That's how I look at it. Why would you limit your ideation to only one quadrant?