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Among the 5G possibilities are augmented reality (computer graphics merging with the real world), virtual reality, improved streaming resolution, holographic displays, enhanced power and next-gen cloud computing. More importantly, smartphone makers' enthusiasm for 5G shows how technological advances can motivate people, especially when their product shipments are shrinking.

Amazon’s recommendations are part of Amazon’s secret sauce. It takes into account many factors when deciding which product should earn the buy button, including a seller’s reputation, price and whether or not it is an item Amazon stocks in its warehouse or if the product ships from the vendor’s fulfillment center.

Amazon’s new Kindle line-up for 2015.

Amid the rising casualties, positions are gradually changing.

Amazon’s annual cloud conference is going fully digital this year as the global pandemic forces companies to move events online.