Zari looks offended by his disbelief. She is a planner! Of course she's ahead of this potential problem. "Yes, I'm going to make you soup. Spoiler alert: they still haven't cured the common cold yet and for all we know the version in my time is worse than your time. It'd be weird if I wasn't prepared for that." She says like Behrad has ever thought about this once while having one night stands with gods as one does when you replace your sister in the timeline. To be fair, none of those partners could get sick.

She lets go of her defensiveness after a beat. There's an obvious answer aside from John just sucking at this. She's getting there. "Maybe it isn't talking about the future." Zari suggests with a small shrug.