I think you're overlooking Maya's connection to Cayde, and given how centric he is to the grimoire in general, that makes it much more likely to be Maya. Most of the original lore pieces connecting Maya to the Exo Strange go via Cayde's history as her bodyguard at the device facility. Also: [quote]She is not because: 1) She wasn’t an exo when she entered the device. 2) The device doesn’t allow time travel, just allows people to view other timelines.[/quote] 1) You don't know that. 2) The device is a pocket space. It may not allow time travel, but it could allow shelter while time passes. Edit: have a read: [url]https://www.bungie.net/en/Forums/Post/156422651?showBanned=0&path=0[/url].