...and have time, and funding, and patience.  2 out of those 3 are in short supply in Silicon Valley.  Robust software is eminently possible, but it requires a development culture that is often incompatible with shipping lots of things quickly and seeing what sticks.<p>I recall that when Parker Conrad spoke at the Stanford startup class, he said that he&#x27;d been turned down by many VCs, at least one of which said &quot;Well, if you were Twitter, this would be a different conversation.&quot;  His take-away from that is &quot;Well then, what can I do to become Twitter?&quot;  Only problem is that health insurance and 140-character text messages are wildly different industries.