It's clear he wants to ask about the dimensional cage, and maybe even about the illusions in movies, but he saves both for later. (If Strange suspects Julius is keeping an actual list, well, he is learning the other man relatively quickly.)

Instead, he focuses on the final question. "Nothing substantial," he says with some regret. "But I'm not sure I'd have enough context to know it if I heard it. I think I have a new level of sympathy for the rifters in the the Research Department at home, to be frank. It feels as if I need an exceptional amount of background reading before I even know if what I've heard is extraordinary or just a matter of course here."