Obviously if the GM makes up everything then the player would not be authoring anything. And I was only tangentially interacting with the example which did not seem player authorish. I do though believe many have said that there is some player authorship in the game and that when they establish something, within genre limits I accept, that something comes into existence. So when that happens, the character viewpoint cannot be maintained almost by definition (Actor vs Author role).
Do you not agree though that in the real world I do not see people and make up a story about them and it become true? Can we agree on that?
In the real world I don't learn about things by making up stories about them.
Nor do I learn about things by having someone lese tell me a story that they made up about those things.
In a GM notes based world, the notes are reality. So if a character just up and says he knows someone out of the blue when in fact at that moment the character does not know anything about that person, that is not something anyone in our world would ever do.
I have bolded the bit I don't agree with. It's not true that the character does not know anything about that person. To elaborate via an example: if the person is the resident of my PC's home town, then almost certainly my PC knows a great deal about that person. Unless my PC has amnesia, that will include recalling whether we were on good or bad terms last time we met.
It's true that, at that point,
the player may not know anything about that NPC. But now the question is:
who gets to decide what it is that the character knows? You seem to think it's more immersive if the GM tells you. To me, that is radically non-immersive because it makes me feel like my PC is an amnesiac space alien.
It's also true that
when I author fiction about what/who my PC is seeing, my character is not him-/herself engaged in any act of authorship.
My authorship as a player correlates to
my character's recollection of his/her memories. When in your game
you listen to the GM tell you something that s/he authored about the NPC or other thing your PC is seeing, your character is not him-/herself engaged in a process of listening and learning.
Your listening and learning as a player correlates to
your character's recollection of his/her memories.
Authoring is obviously only a rough correlate to remembering. Likewise listening and learning is only a rough correlate to remembering. You prefer the second. I prefer the first. I don't accept that yours is "in character" in a way that mine is not. Just like
remembering,
authoring is something that happens inside me. It is immersive in that fashion. Whereas
listening and learning is a process of having knowledge come into me from outside, which is not what remembering is like at all. That is why I find it dissociating rather than immersive. What it has in common with remembering is that it is not an "active" creative process. I imagine it is that commonality that makes you prefer it.
in one instance, information is put into a characters head by that characters player. In the other the GM is describing what the character sees and is passing information to the player from the characters mind. I see a difference here. Call it what you will.
I have tried to describe the difference in some detail above.
if I had a cleric player who said "Hey, I want to flesh out my religion and come up with the marriage rites, or develop the hierarchy further, or whatever." That would be fine but it would be done and checked by the GM to be sure it didn't go against already established things.
This is a completely different thing for me from the above, because now we're talking not just about PC memories but about social practices, theological beliefs, etc. The
established things you're referring to are, I assume, the GM's notes. For my part I don't see any reason to favour the GM's invention over that of the player, unless there is some direct intersection with the current situation in play (eg if the PCs are about to sneak into the evil high priest's manse, having the player at that point just invent the evil high priest's religious practices might be out of bounds - they'd at least have to succeed on a Religion check).