First I'm going to respond to what you're saying, then at the end I'm going to post a couple of explanations that are related but don't fit into my responses.
Given it's a source we know Michael has gotten information from before, yes, I think it's wrong to disregard. It'd be like saying, "How does Harry know this? And don't say Bob told him."
Yeah, fair enough. This is probably what happened.
If getting rid of a Shadow is a possibility, it is exceedingly rare. I mean, it's probably super rare that a wizard gets a coin in the first place -- most of the wielders we've seen don't appear to have been wizards or sorcerers before they got the coin. My point is not, "Nicodemus doesn't know about it, so it's impossible," the point is, "Nicodemus doesn't consider it a factor because it almost never happens, so he doesn't care enough to bother looking into it. Michael and his ilk, on the other hand really really want a way to remove the Shadow, therefore they'd have looked for it actively."
And my point is not "Nicodemus would look into it on his own" it is "Nicodemus would keep track of what
the Church believes about the subject, and attempt to prove/disprove their theories, because as a spymaster that's what he does."
Michael believes it. Harry trusts Michael implicitly -- so to Harry, Michael believing it means that it's trustworthy, because Michael is trustworthy, and to Harry's knowledge -- and ours -- Michael would not tell Harry something that Michael believed would bring Harry to harm.
That is an absolutely accurate assessment of why Harry wouldn't question it (even though I like to believe that if he thought about it he would ask how giving up the one thing he has faith in is supposed to
help him against the Fallen--but that's beside the point).
How? Who's putting the gun to Michael's children's heads and forcing him to lie?
To play devil's advocate: The White Council, (well, technically a sword rather than a gun). Or what do you think would happen to Molly if Harry took up the coin? Whether she stays with him or leaves, that's not going to be good for her.
In all seriousness, I think this is a fairly remote possibility--I'm more inclined to believe that Michael exaggerated rather than just lied.
No. When asked, Michael told Harry that to get rid of the shadow, he needs to get rid of his magic.
In the later conversation, Michael is not answering a question, he is making a point about why he thinks Harry still has the Shadow -- because, to Michael's knowledge, Harry has not done the things he knows of to get rid of a Shadow.
What I was trying to say here is that if he believed what he said in Proven Guilty and then found evidence disproving it, it is not out of character for him not to mention that evidence unless confronted, just as he conceals his sword but almost certainly would not lie about it when asked.
If what Michael is saying is a lie and Michael knows it, then Michael telling Harry does not help at all. As you have argued, if Harry tries to get rid of his magic and doesn't get rid of the Shadow, then it will only make things worse.
If what Michael is saying is an exaggeration (which I have been calling a lie, but am realizing now that that's not a clear way to talk about it) then giving up his magic would help Harry. If Michael doesn't believe that Harry would give up his magic, then he doesn't need to factor the consequences of Harry doing so into the equation.
Michael's reaction is clearly disappointed that Harry won't take him up on the offer; there are a number of ways Michael could have given Harry hope without lying if that was the case. There is no indication in the scene that Michael was trying to offer false hope.
If Michael truly did not know a way to get rid of the Shadow, he would have straight up told Harry, "I don't know how. But that doesn't mean there isn't a way, and I will be right there with you helping you through this."
This is very true. At this point, I don't believe that Michael did more than exaggerate.
Not true, because Michael ends the conversation by explicitly and directly confronting Harry with what he will do if Harry succumbs to the coin.
Michael acknowledged the possibility intellectually, and knew what his duty was. He didn't necessarily accept it emotionally. If he had, I would think he would have had a stronger emotional reaction to Harry turning down flat the only way he knows to get rid of the shadow. (Of course, he could have just gone home and dealt with his emotions where they wouldn't undermine Harry--we don't know).
Also not true, because the event they're driving home from is Harry volunteering to train Molly and Michael clearly approving of such an arrangement.
And I don't see anything to indicate Michael considers Harry putting aside his magic to be a higher priority than the risks you say exist if putting aside magic doesn't get rid of the Shadow.
If any such prejudice existed, I would expect it to be unconscious. Also, Harry just saved Molly's life, so I would expect Michael to approve of that. As for your second point, see the explanations below.
In this analogy (and I do not intend this as any judgment or statement on disabilities), you going to and finishing college is analogous to Harry getting rid of the coin. Your learning disability is, if anything, analogous to Lash; the obstacle to doing the thing you want, a thing that you/Harry are well aware of as an obstacle.
Saying the disability is the equivalent of Michael's idea not working is disingenuous, because Michael's idea not working is just not a factor that Michael or Harry are aware about or would be, except in the sense that all plans that anyone ever makes have the unspoken rider of, 'If this works.'
Ah. I understand the problem now. The disability is not the equivalent of Michael's idea not working. The equivalent to Michael's idea is my aunt's belief that I can get through college, and the possibility of it not working is why we discussed contingency plans.
On the other hand, thinking it over again, Michael probably would have expected Harry to contact him if he changed his mind about giving up his magic, so he might have saved discussing "what if it goes wrong" for then.
Nicodemus having no knowledge is not a data point -- it's a lack of one. If Nicodemus had positively claimed Michael was full of crap, that would be one thing -- though I would probably still doubt it, because Nicodemus is a liar who has incentive to lie here.
Nicodemus not knowing that it is possible to get rid of a shadow
is a data point. Here's why:
If there was a known method to get rid of a shadow, there is a good chance that Nicodemus would know it. As such, the chance of Nicodemus not knowing it is significantly less than 100%.
If there is no known method to get rid of a shadow, then the chance that Nicodemus did not know of one
is 100%.
According to my understanding of formal logic, this works out to mean that Nicodemus not knowing the information means that it is
more likely that there is no known way to get rid of a shadow than that there is one, based on the information given.
And how does Harry giving up his magic, retaining the Shadow, resenting Michael for it, and possibly taking up the coin again save Harry's soul?
See explanations below.
I'm saying we have a whole lot of evidence that Michael doesn't lie; and someone who doesn't lie often, has an aversion to lying, and has been shown as visibly uncomfortable when other people lie? They don't lie very well. Michael presents no tells that he's lying. He doesn't hesitate, he doesn't stop to think, he doesn't look away, he just straight up, instantly, tells Harry that there's a way to get rid of a Shadow.
How does he know? In the same scene, he admits that he's known for years that Harry picked up the coin. It only makes sense that -- knowing his friend has a Shadow in his head -- he would look into some way to help him.
Good point. This is why I have changed my opinion to believing that what he does here might be exaggeration, but no worse a lie than that.
I think Michael would posit that lying doesn't save souls; in fact, that lying taints the soul. Lying is, among other things, one of the problems he has with the Denarians in general. I mean, hell, isn't Satan referred to as things like the "lord of lies"? With all that in mind, I do not for a second believe Michael is the kind of person who would make that compromise based on what we've seen in the books.
Good point; very possible.
I am claiming that, he makes his own judgments of whether the information he finds is true or not, with the knowledge that sometimes the Church's information is not accurate.
He is, again, a smart man. If there's a possibility that his information was wrong, do you believe he would not have even tried to verify it? If he found some old book that claimed you could get rid of a Shadow by giving up magic, do you think he wouldn't have looked into it? Prayed for guidance? Straight up gone, "Hey, Big Guy, we both know you owe me a solid -- will this help Harry? One lightning bolt for yes, two for no."
I think he does try to verify his information. How successful he is and when he is successful are different questions.
Michael still doesn't think it's right, and even afterward Harry has to continue justifying the action. You can see where Michael makes a sort of "clean break," where he goes from, "That was wrong and I don't approve," to, "Well, what's done is done. He's an asshole anyway."
You're right in that it is a contradiction -- but it's not on the scale of him questioning and undermining his own beliefs and advice. He still doesn't think it's right, just that it's funny. There's lots of things that are hilarious but still wrong.
I don't mean that he should undermine what he has said. I mean that he could say "I'm 95% certain of this" rather than "I'm 100% certain of this."
ADDENDUM: Michael doesn't know Charity had any magical power. So whether or not it prevents warlockness is not a factor in his thinking, at least not because of anything Charity's done. I honestly just don't think the two are linked in his mind.
Very true.
Explanations:Why Michael would tell Harry to give up his magic if he were uncertain it would work, given the consequences:I believe that if Michael thought that Harry would ever willingly give up his magic, then that implies that he didn't understand how important magic is to Harry and how much damage it would do for him to give it up. As such, either Michael did not expect Harry to give up his magic, in which case he wouldn't have any reason to consider the consequences if Harry
did so; or Michael was missing information that would have told him how dire the consequences might be, and as such could not make an accurate assessment of the risks.
On Michael exaggerating:As I've said before, there is no evidence apart from Michael's word that Harry giving up his magic would destroy the shadow. There
is, however, evidence that Harry giving up his magic would weaken the shadow's hold on him--the way hellfire ties into the shadow's influence. Hellfire is clearly a vector for the shadow to influence Harry. In the same book we see Harry using hellfire, we see the first negative effects the shadow has on Harry's mood. Further, the shadow can only interact with Harry's conscious mind once Harry has used hellfire consciously. Just as Mab prevented Harry from using fire magic because summer fire was entwined with it and would let Summer find him, Michael might believe that Harry needs to stop using magic in order to weaken/eliminate the shadow's
influence on him, even if it doesn't destroy the shadow.