One of the fastest-growing stocks in artificial intelligence (AI) over the last year is Palantir Technologies (PLTR 6.56%). Its Artificial Intelligence Platform (AIP) brought eye-popping productivity gains to its customers. Investors took notice, as the stock is up by 420% over the last year.Unfortunately for investors who have recently taken an interest, its forward P/E ratio is 205, and it sells for 96 times sales. Knowing that, three analysts from The Motley Fool have weighed in to determine whether its ...