The theory reframes the way we would watch the series and adds quite a bit of context to the way in which the series depicts Rick’s adventures.
A new Walking Dead fan theory posed by YouTuber MOVIEidol suggests the distinct possibility that the comics and the TV series are a flashback told by an aging Carl, who looks back on the exploits of his father.
The eldest Grimes child is a notable bridge between the pre-zombie world and the post-zombie world, because he was old enough when the outbreak occurred to remember the old world, but he specifically grew up and developed his moral compass in a universe where death (and the undead) have become an everyday occurrence.
The primary evidence for this theory is the amount of detail that occurs whenever a Carl-centric story occurs, as well as the fact that Robert Kirkman has explicitly emphasized how much he likes telling Carl’s story.