The quote pops up, but we're treated to a two minute monologue narration that goes over time as an illusion again right after while we're looking at an evidence board filled with past present and future versions of a number of people - yarn stringing them all together in a web of unknown connections.

"We trust that time is linear. That it proceeds eternally, uniformly. Into infinity. But the distinction between past, present and future is nothing but an illusion. Yesterday, today and tomorrow are not consecutive, they are connected in a never-ending circle. Everything is connected."

The fact that we don't know who those people are at that point doesn't matter. The narrator told us that we're going to be seeing time travel connected in a never-ending circle (aka a loop).