At this point, Google and Facebook are the clear leaders in the digital ad space, which is predicted to continue to grow exponentially (reaching $175 billion in 2021, overtaking traditional advertising with an estimated $100 billion). Although Amazon’s market share is a mere 10 percent in 2018, many believe that Amazon is best positioned to be the market leader in the digital ad space in future. Why would people make this argument? Do you agree with this assessment? Why or why not? Buttress your position.