Apple, Amazon Technology And GDP

Apple and Amazon capitalizations total approximately two trillion dollars.The United States Gross Domestic Product totals approximately nineteen trillion dollars.APPL and AMZN capitalizations are a little more than ten percent of all the goods and services from mom and pops to heavy industry sales in the U.S. Apple is a technology company. If there is any truism about technology is that "change " is inevitable and with it fortunes are lost. Amazon is essentially a store.History has shown that the real estate under the store has proven more valuable over the long run. Amazon doesn't need real estate.So any new competition doesn't need any also because technology obviates the need of real estate. What about new technology that threatens Amazon? That is bound to happen