In 2010, a small California-based company opened its doors for business. They didn’t have much capital but, with a staff of only four, they did have a singular vision--to outdo Kodak. Even through the rosiest of glasses, this would not appear a feasible proposition. It’s a scenario that makes David versus Goliath look like a fair fight. But 18 months later, the company of four, which had become a company of 13, was sold to Facebook for $1 billion.It was a sale that made headlines the world over. Instagram was the new digital sensation.