This is one for those nerds Joaquin Phoenix was talking about in the movie Signs -- you know, those guys who can't get girlfriends so they make up secret codes to make themselves feel special (which is such a different kind of nerd from me).
So these people want to suggest that Ben sent Michael and Walt BACK IN TIME, and that Walt grew up to look EXACTLY LIKE HIS DAD, and that Ben recruited Walt to be his spy on the frieghter -- all this work just so the writers of Lost could say GOTCHA!!!
Neato. Do you think you're special now?
That's exactly what the nerds want you to think.