He holds up his hands, fine. Not crazy. He isn't sure if he believes him even before he gets started, but he had just agreed to hear him out. Miller narrows his eyes, trying to picture what Alex is describing. It sounds surreal and before the protomolecule he would've just written this off. As it is, he still has to ask- "You sure it wasn't a dream, pal?" For him, it's gentle enough. He doesn't want to make Alex feel crazy he just needs to get to the bottom of this now.