Sorry if I misspelled anything and not having direct quotes or page numbers as well as if this is discussed elsewhere. Listening to WoR and got am in the chapter monsters where Kaladin and crew are learning to ride horses. The lead groom made a comment about how horses were not well known long ago but the radiants had ryshadium. We know they bond in some way but are they more likely to bond a proto radiant is the bond similar to the nahel?