No matter which tech company wins the global artificial intelligence (AI) race, this silver miner could soar.Chances are that you've heard how the real fortunes from the California gold rush weren't made digging for gold. Instead, they were made by people selling picks and shovels. Today, a similar picks-and-shovels opportunity may be shaping up for the $15.7 trillion artificial intelligence (AI) revolution.Because just as the picks and shovels merchants made money no matter who found the gold, First Majest ...