'The Apparatus sees all…'
As Adam's last message to him lingered in his mind, Valyr could not help but recall a couple of memories where the person he was talking to would conjure a barrier around them before they continued their conversation.
Back when he was talking to Vaughn, the latter told him that he conjured the barrier to reduce the risk of the system obtaining important pieces of information from their conversation.
As for Zenith's case, it mentioned to him that the barrier separated them from the universe, allowing it to continue their conversation.
Although he did not think too much of it while talking with Zenith, after reading through Adam and Eve's messages, he now realized why they had conjured those barriers while talking to him.
It was to make sure that the Apparatus wouldn't listen in to their conversation.
