Steve looks at Tony like he's talking nonsense, and then reaches out to take his shoulder, again, not letting Tony shrug him off this time if that's what he's going to do. He has no idea what that was about.

"You're not on a clock. I have no idea why you think there's some sort of deadline for you to invent something. No, you've never built a spaceship before, as far as I know, so I don't know why anyone would expect you to have figured that out if you don't even have enough resources to build a suit."

He wonders if Tony has lost so much sleep that he's delusional, because he sure as hell isn't making a whole lot of sense. "Hey, how about this. You show me what you're working on, and get some sleep. And while you're doing that, I help you come up with a couple new ideas to try." How he can promise this when everything looks like actual gobbledygook to him on a normal day is beyond him. "How's that?"