Did a Top Apple Executive Just Give Investors the Ultimate Reason to Dump the Stock?

Apple (AAPL -2.15%) has been one of the best stocks to own over the past five years on the stock market, rising more than 160% during that time frame. As of Monday's close, its market cap was just over $3.1 trillion, making it one of the most valuable companies in the world. The success and strength of its business revolves around its iPhones and iPads, as well as the ecosystem of its other products and services.But what if something happened that disrupted that dominance? One of Apple's own executives admi ...