The concept of smartphones and electric cars seemed like a pipe dream 20 years ago, but today, nearly 6.92 billion people, or 86.4% of the global population, have personal smartphones. Governments worldwide are moving toward a green future by encouraging the use of electric cars instead of vehicles with combustible engines. Investing in burgeoning technologies could increase your wealth within the next two decades. Take look at some of the most promising technologies poised to catch on. Generati