As DiResta tracked where the groups overlapped, she noticed that joining one conspiracy theory group meant Facebook would prompt her account to join a group devoted to an unrelated, but equally false, belief. Facebook was pushing the conspiracy theory communities together, setting the stage for a superconspiracy like QAnon to take them all over. Right as QAnon started to infiltrate Facebook’s network in 2018, DiResta noticed prompts urging her dummy account to join QAnon groups. But the Facebook algorithm wasn’t just promoting QAnon to her antivaccine test account. It was also pushing people
...more