In the fourth book it says that they involve soul energy and use Breaking.
I think that would definitely work for Space, Time, and Physical World Talents, but I'm not sure about Knowledge Talents.
I think Knowledge Talents would do what they do and influence people to respond. Like how with the Talent of being Forgetful, when they forget, they can make someone else forget.
Space Talents, like Getting Lost, obviously break space, but they use a very specific type of soul energy to do so. I think. Because they can't break as much as the Physical World Talent if Breaking Things. Kaz can break space, Alcatraz can break anything.
So I think there'd be specific types of soul energy.
Does anyone else have anything to offer?