Choosing the problem.
WHAT TO LOOK FOR
A problem people already spend money or effort on A group you can reach A problem narrow enough to solve well
WHY NARROW MATTERS MOST
A product that does one thing properly beats one that does many things adequately, when nobody knows you yet.
WHAT MAKES A GOOD FIRST PROBLEM
You have experienced it You can reach people who have it It recurs, rather than happening once It costs them something measurable
WHY RECURRENCE MATTERS
A one-time problem does not support a subscription.
WHAT TO BE SUSPICIOUS OF
Ideas with no existing solution Markets where nobody is spending Problems only you seem to have Products requiring behaviour change
WHY NO EXISTING SOLUTION IS A WARNING
Usually it means the problem is not painful enough to pay for.
WHAT COMPETITION INDICATES
A real market.
WHAT TO ASK ABOUT COMPETITORS
Who is underserved by them What they refuse to do What their customers complain about
WHERE TO FIND THOSE COMPLAINTS
Reviews, forums and support communities.
WHAT TO AVOID BUILDING FIRST
Something requiring a large audience before it works Something requiring integrations you cannot obtain A platform rather than a tool