Got my signed copy of Elantris , with question answered! (They emailed me to clarify the question, which is why i got so in depth).
Exactly what i emailed is below, typos included.
The background to my question is this:
It was once stated by Mr Sanderson that "Magic in the cosmere needs a guiding force. If it doesn't have one, the magic itself will gain sentience." We also have that things like Nightblood that gained sentience because of crazy amounts of investiture.
My question then is:
"Is the reason that investiture has this tendency to lead to sentience caused by the fact that pre-shattering Adonalsium had a goal/purpose/intent of bringing sentience to his universe."
(I guess this is in a way a 2 part question, because it assumes that Adonalsium actually HAD the intent of bringing sentience to his Cosmere)
And his answer:
Yes, this is part of the reason. Good question!