No, it's a good point you're making. If we're living in a place that's supposedly a dream, then the truth has little hold here, no?

[Maybe. They're both spitballing, but what else can they do?]

You... were bit by a spider? And it gave you all these powers? [She isn't doubting him; after all, she saw a little bit of what he could do. It just seems pretty bizarre that a spider could bequeath that to someone.] That must have been some spider.