Argent
Can a Returned like Lightsong go to Roshar and form a bond with a spren?
Brandon Sanderson
Investiture interferes with other Investiture.
Argent
And they have a lot of it.
Brandon Sanderson
And they have a lot of it. That is not-- It's not completely-- For instance you can Push on Invested metal, but it's hard. There's a resistance, the more Invested the harder-- So a bond for instance-- forming a bond-- It's, yeah-- It can be done--
I mean Sazed took two of the powers up, right? But I kind of imagine what he did as a nuclear reaction. Where breaking an atom is hard, unless you are in the middle of a sun. And he was in the middle of the sun. At that point--
Argent
There was a lot of stuff going on around him that facilitated.
Brandon Sanderson
Yes, definitely. But when you've got that much power you'll-- In other words if there is a lot of power going around, these things become easier.
Argent
So, possible but difficult is--
Brandon Sanderson
Yes.