I've got some things that have been bothering me, hopefully this will be a fun test for you. Which event brought the vex into our universe (not the hive realm), Crota's portal or the traveler's terraforming? Also, the timeline of those events. If I'm not mistaken, Quria-meets-the-hive happens first, it is most likely afterwards that they have the black heart in the black garden outside of time, and some time afterwards the traveler comes to our solar system. Finally, I cannot remember from where, but I have heard or read that the black heart was created from the traveler's self doubt. This would of course go against the new theory. Any idea where that came from?