The above motives dont tell us whether or not he is telling the truth, as none of us were actually in the room to know the truth.
No, of course not. It's impossible to know if someone is telling the truth if you have no personal experience with what he's talking about. And then how you percieve the situation can be affected with knowledge gained from previous situations, muddling the 'truth' even more. That however doesn't change the fact that all the motives you mentioned can affect how
we percieve what he has written. Was he in great need of cash? Then that would make me think that perhaps he's doing it for more than just telling the truth, and hence spicing things up a bit to sell more books. Did he do it to become famous? That could also mean he spices things up a bit, to become more controversial or whatever. His reasons doesn't have to affect what he's written, but it can affect how
we think about what he's written. And how do you know his motives btw? Used the same kind of mind reading as you used on me when you said what I meant by my post?
Edit: Not that I know much about his financial status, but from what I gather he's probably not in great need of cash at the moment. If it turns out that he's bankrupt and will end up on the streets if he doesn't get a fast cash inejction, then I'd agree that this most likely would be a marketing ploy, but it doesn't exactly seem to be the case.
Now, how to interpret this. This specifically tells you that
I think that if there was an immidiate need for cash in Clarke's life, then it could be a reason for him to spice things up in his story or marketing. It doesn't say that all poor people try to trick you. It doesn't say that Clarke is a liar. It neither tells you that spicing it up necessarily makes him a liar. It tells you that
I think that it could have been a reason for him to present the situation in a way that will in turn generate cash for him.
We don't know his motives, we can only assume what his motives are, and by doing that we can then by ourselves come up with if we think those motives somehow would affect what he's written.
The end.