Shares of chipmaker Nvidia (NVDA -0.02%) have soared more than 2,400% in just the past five years. The stock has proven to be a growth machine due to advancements in artificial intelligence (AI) and the importance the company's chips play in next-gen technologies.But with the company now among the most valuable in the world and amassing such incredible gains, is it too late to invest in Nvidia? Can this still be an exceptional long-term investment, one that could potentially turn a $25,000 investment into m ...