Originally Posted by Jennifer
I love Frequency, and never really had a problem with the two memories plot line. The way I see it, the atmospheric interference that gave him the ability to communicate with his dad via HAM radio in the past is very localized since only that particular radio that seems to be affected. So it's the localized atmospheric interference around the radio that created the bubble effect for him. No one else was in the vicinity of the radio, so they retained only new memories.
I agree. In a sense those radio waves are traveling through time and Jim Caviezels character (named John) is the one sending them.