Frustrated virtual reality pioneer leaves Facebook’s parent


              FILE - John Carmack speaks during the Oculus 2 conference in Los Angeles, Thursday, Sept. 24, 2015.  Carmack cut his ties with Meta Platforms, a holding company created last year by Facebook founder Mark Zuckerberg, in a Friday, Dec. 16, 2022 letter that vented his frustration as he steeped down as an executive consultant in virtual reality.(AP Photo/Nick Ut, File)
            
              FILE - Meta's logo can be seen on a sign at the company's headquarters in Menlo Park, Calif., on Nov. 9, 2022.   John Carmack cut his ties with Meta Platforms, a holding company created last year by  Facebook founder Mark Zuckerberg, in a Friday, Dec. 16, 2022 letter that vented his frustration as he steeped down as an executive consultant in virtual reality.(AP Photo/Godofredo A. Vásquez, File)
Frustrated virtual reality pioneer leaves Facebook’s parent