"Yes. Some parts of our personal worlds overlap with each other perfectly.
"These overlapping parts are what I'll call 'common areas.'
"They're places that exist for everyone, no matter what their world looks like," I said.
Mira frowned. "Can you explain that in a simpler way?"
"Think of it like this," I said. "Imagine ten transparent maps stacked on top of each other.
"Wherever all ten maps have a road drawn in the same spot, that road exists for everyone. That's a common area.
"For example, the corridor in my facility might be a walkway in Mira's library, a tunnel in Ellyn's sewer, and a road in Lars's city.
"They all overlap in the same space, even though we see different versions of it," I explained.
Calliope rubbed her arm. "S-So… if we stay in these overlapping places, we'll be fine?"
