That being said, even Carmack seems surprised by the acquisition. "Honestly, I wasn't expecting Facebook (or this soon). I have zero personal background with them, and I could think of other companies that would have more obvious synergies," Carmack wrote.
Many have expressed concern over Facebook's policies regarding private information, but Carmack doesn't share those worries. "I'm not a 'privacy is gone, get over it' sort of person, and I fully support people that want [to] remain unobserved, but that means disengaging from many opportunities. The idea that companies are supposed to interact with you and not pay attention has never seemed sane to me," he wrote in a separate comment. "I have never felt harmed by data mining, and I rather like the recommendations that Amazon gives me on each visit."