It's also one of the ways we're going to talk about [how] the aliens might even communicate or be communicating. One of the things we're trying to do with the whole first season is ... Molly and her red team of the threshold people are scrambling to try and find out what's going on and may frequently be wrong about what's going on, because it's not like the aliens just come down and say, 'Well, we're going to be doing this. We're going to be doing this.' A lot of what we're trying to do is posit the aliens as genuinely alien, so that even struggling to communicate with them is really difficult. And because our show is going to be a slow rollout, it's going to be a while before there's even any really secondary communication with them.

David S. Goyer