I don&#x27;t necessarily agree that one should avoid re-solving &quot;solved problems&quot;. Couldn&#x27;t someone have argued that social media was a &quot;solved problem&quot; between MySpace, Friendster, LiveJournal, etc. before Facebook and Twitter came along? What about the new restaurant down the street? Isn&#x27;t &quot;getting food&quot; a solved problem?<p>Not only is there nothing wrong with copying a successful company and implementing a business model that&#x27;s been proven many times over, but it&#x27;s far and away how most businesses start. There are a lot of wealthy people out there who got fired or laid off and just decided to start up an entity that directly competed with their former employer. Zero creativity involved in the conception of the business and zero uniqueness in their core value proposition. The customers differentiate on the dressing.<p>Of course it&#x27;s worthwhile to consider whether the field is crowded or not, but that shouldn&#x27;t be the sole consideration.