I'm going to preface this by apologizing if this topic has been discussed before. I don't have a ton of time to read through all of the 17th Shard Forum so if it has been previously discussed, please direct me to the proper page (thanks in advance).
I've been re-reading through Edgedancer and a thought occurred to me... Lift's ability to metabolize food into Stormlight seems oddly similar to Misting's and Mistborn's abilities to do the same with metal on Scadrial. We obviously know Worldhopping is possible and that all powers in the Cosmere are linked together somehow, but I still don't believe we have a clear idea about how powers translate from one world to the next. Of the worldhoppers that I'm aware of, none have shown their powers on more than one planet. Some haven't even shown their powers at all (other than the ability to worldhop).
So, is it possible (or even probable) that Lift is originally from Scadrial, born with the powers of a Misting/Mistborn? It would explain why she needs to ingest something in order to gain Stormlight (I think metal would be a poison to anyone not on Scadrial which would explain why she needs food and not metal for Stormlight). We know almost nothing about Lift's past and where some comes from. If any of this is true, I'd also believe she was brought to Roshar at a very young age (before she realized she had Misting/Mistborn powers on Scadrial). This could explain why she's never had thoughts about worldhopping or another planet. My only question then would be, who brought her and why? I don't believe Lift would have worldhopped herself (otherwise I think that ability would have at least been hinted at by now).
So what do you think? Does my theory hold any weight? Am I crazy for not thinking that Lift is originally from Roshar? Is there something in the text that I have missed which would point me to an answer? (I'm only on chapter 4 of my re-read and I don't remember all the details from my first time through).
Curious to know your thoughts!