Apple on Thursday copped to something users have long suspected: It slows down older iPhones. While conspiracy theorists have suggested it was part of a planned obsolescence gambit, Apple says it is, on the contrary, trying to make sure older phones continue to work. The admission came after Geekbench, a processor benchmarking outfit, on Monday published a post that charted how older iPhones operate in a speedier fashion when running an older version of iOS. And John Poole found than when it came to iOS, the difference between 10.2.0 and 10.2.1—the latter a patch that rolled out in February—was dramatic. His theory: "that Apple introduced a change to limit performance when battery condition decreases past a certain point." The answer, and what it means, in three quotes: