<i>But finding a good idea is apparently not all that hard, Smart learnt.</i><p>Can someone share this know-how with us, please?<p>If you were to invest in Google in its early days, would consider a yet another search engine a good idea?<p>So basically, a good idea means that you're better than your competitors?<p>Or if you created something unique, how do you know it's going to work on the market?