You're talking about something very different -- basically, building something for fun. The objective is to spend time building something, and it doesn't really

You're talking about something very different -- basically, building something for fun. The objective is to spend time building something, and it doesn't really matter what the thing being built is. This aligns with the intrinsic motivation very well. The other scenario is that you're building something for others to use -- you have to understand their problem, design the solution so that it would make their lives easier, etc. With this, it makes sense to start at the soft end of things. The implementation, the actual building -- that's just drudgery at this point, something someone will do if they're paid enough.