No really, why is prayer necessary, especially for Christians who worship their "all knowing" god? Doesn't their god know what's going on in this world? Does he/she/it need to be reminded? Does their god react and help those that are prayed for but ignores those that aren't? Does the number of prayers have to be over some arbitrary limit before god will answer and react? Does the poor person in the hospital with no relatives and no church and therefore no one to pray for him, is he on his own? Does a prayer come into god's office and he jumps up and says something like "Oh yeah, almost forgot about that. I'll do something now." And why do people pray for total strangers? They don't know who they are praying for -- could be a murderer or a bomber for all they know.
Seems to me that an "all knowing" god would, well, know about everything that is going on in the world. Of course, if that's true then why does he allow atrocities to occur in the first place?
(Note to mods/admins: If questioning religious beliefs is off-limits on this forum, please feel free to delete this thread. Won't bother me in the slightest.)