Finallity
(paraphrased)
We've seen a number of human/singer hybrids (Unkalaki and Herdazians) and even human/Aimian hybrids (Natans). How is such a thing possible biologically or is there some outside influence there?
Brandon Sanderson
(paraphrased)
He said that they (humans and parshendi/aimians) can interbreed because they were made by the same person, or rather that they were made with the same intent, that they were made that way on purpose. They don't have a common heritage or anything though.
Tesh
(paraphrased)
Is there any particular reason Hoid's hair is white?
Brandon Sanderson
(paraphrased)
Yes, and it will be revealed in the future.
Tesh
(paraphrased)
How does the whole DNA and blood type thing work?
Brandon Sanderson
(paraphrased)
There is a sort of universal donor.
Tesh
(paraphrased)
Was Jezrien sent to Braize when Moash killed him? Or is he gone?
Brandon Sanderson
(paraphrased)
RAFO.
Tesh
(paraphrased)
Do the gemstones in fabrial Soulcasters contain spren?
Brandon Sanderson
(paraphrased)
Soulcasters are strange. And if you read closely, you might be able to figure it out.
Tesh
(paraphrased)
How was Nale able to keep recruiting Skybreakers even after the Recreance?
Brandon Sanderson
(paraphrased)
The spren simply didn't leave, and kept bonding Radiants.
Tesh
(paraphrased)
If Ruin and Preservation could become Harmony, could any of the other Shards combine?
Brandon Sanderson
(paraphrased)
Yes, although they would have different names.
Brandon Sanderson
(paraphrased)
He told me he consults with several people who are well versed in psychology when he tries to portray anything along these lines. He did say (and this goes along with other statements already made) that his intention was not to have Shallan diagnosed with DID like Kaladin is with Depression. He did take some ideas from the disorder to use in the story, but he didn't intend for her to be set into a specific mental illness category. Like we said before, Brandon's focus was mainly on the magical consequences, which makes her case weird anyways.