Wal-Mart only competes with the retail portion of Amazon. My prediction is that by the time Wal-Mart grows large enough to be a competitor (in online sales), Am

Wal-Mart only competes with the retail portion of Amazon. My prediction is that by the time Wal-Mart grows large enough to be a competitor (in online sales), Amazon's cloud and devices business will be larger (and more profitable) portions of the company. Amazon could then subsidize retail. Good luck to any retailer wanting to compete with that. :)