Earth's human population is aging. According to recent research from the World Health Organization, from 2015 to 2050, the proportion of people 60 or older will almost double, from 12% of the total to 22%. That's a big leap over a relatively short period, and the trend offers a significant opportunity for medical device makers, especially Boston Scientific (NYSE: BSX). Here are three reasons why its stock can quintuple -- at least -- on the back of this shift. Will AI create the world's first trillionair ...