[Steve watches Tony, silent for a few long moments. There had been plenty of times he hadn't believed the world he'd woken up in was real. That waking up from the ice had just been some horrible dream and he'd wake up at any moment. He'd be on time for his date with Peggy and have a life that didn't include aliens or norse legends.]

If we're just someone's creation, we wouldn't be able to exist in the real world. People don't just come off the pages of a book and decide they don't want to be fake anymore. I don't care what anyone says. We're real. Our home is real.

[He frowns at the phones; Steve could care less how sophisticated Tony's looked. They both made calls.]

I don't use them but I know the general idea. Would anything keep him from being on your phone?