Investors continue to be nervous about the company's spending.Meta Platforms (META -0.07%) shares slipped following its third-quarter results, despite the company posting record revenue in the quarter that topped expectations. However, investor focus once again turned to spending, with the company indicating that it would continue to ramp up its capital expenditures (capex) to take advantage of the artificial intelligence (AI) opportunity it sees in front of it.Let's take a close look at Meta's Q3 earnings ...