The amount of money companies are investing in their artificial intelligence (AI) efforts is truly mind-boggling. Given that many experts believe this technology will unleash productivity gains like the world has never seen before, it makes sense why executive teams are going all in. No one wants to get left behind. From an investing perspective, the course of action is crystal clear. Investors should look to allocate capital behind this powerful secular trend. To do that, here's the best AI exchange-trade ...