Sabine is skeptical of going as far as the center point of all universes, but she can feel a lot coming from this planet, from the more than that is suffused through it. This Singularity. There's something about it that has been tugging at her. She does need to understand what is happening here. She doesn't clarify that he's right about his supposition of its existence and that she has no doubt in that part of it.

But then she isn't a living creature 'as we are' either,
not even if she knows she appears to be that completely.

Standing in plain sight.

"Where would one find out more about it, then?"