Artificial intelligence (AI) and cryptocurrency are two high-growth markets that offer promising return potential. Investing in the right stocks could pay off handsomely in the coming years. Here are two stocks that could deliver. 1. Advanced Micro DevicesAI is expected to increase the global economy by $15.7 trillion by 2030, according to PwC. This is a huge opportunity for one of the leading chipmakers, Advanced Micro Devices (AMD -1.98%).AMD stock pulled back sharply to start the year, but it has begun t ...