Normal business thinking: If we can borrow money at historically low rates, buy back stock, and see the value of management’s options increase, why invest in growth and the jobs that come with it? That’s risky. Amazon business thinking: If we can borrow money at historically low rates, why don’t we invest that money in extraordinarily expensive control delivery systems? That way we secure an impregnable position in retail and asphyxiate our competitors. Then we can get really big, fast.