Maybe this so-called "law student" should read up on retail marketing terms from time to time. Loss-leaders have been a thing for decades if not longer. Amazon is just able to maintain more loss-leaders than your average brick-and-mortar store (chain or non-chain), and their operations are diversified beyond E-commerce/retail with higher margins which can polish the numbers quite a bit.

The world has yet to see another monopoly on the scale of Standard Oil, and no, Amazon (specifically in the E-commerce market) is nowhere even close to that. One law student's "predatory pricing" is just another business' loss-leader.

I hope Mr.Sussman will one day acquire the knowledge that he won't be the first nor the last to come up with ideas on how to challenge Amazon.