Questioner
If a Full Twinborn (regardless of natural or holding the Bands of Mourning) had access to unlimited Investiture, could they become the sun by infinitely increasing their gravity and heat?
Brotherwise Games
Infinite Investiture, you’re theorizing?
Questioner
Dalinar’s next to him.
Brandon Sanderson
Dalinar’s not gonna be able to provide enough. But in a thought experiment, sort of outside bounds of time and space… you are providing infinite Investiture, you are providing an infinite amount of healing, and you are having them create heat and weight? The problem is, you’re gonna need a whole lot of mass to turn into the sun. I mean, there is a way you can do this, but you’re gonna have to provide… Either the Investiture’s gonna have to become mass, or you’re gonna have to have them do it in the proximity of a whole bunch of mass to have to start causing that sort of fusion reaction where the different layers collapsing in toward the center, dense layers, that sort of thing. In the realm of complete hypothesis, then yes. But, of course, you an do that here with infinite energy and infinite mass, if you needed to, using mechanical means.
I guess the weird part of that question is: the person could retain consciousness through infinite healing, and that is the weird part and that is possible. Yeah.