Alright I got bored one day and read 2/3 of the destiny 2 lore so I can explain this. So otsot was a psion during calus’s rein she was one of the few free psions. She built the ox’s machine without permission but later got found out. When calus found out he was pleased and really liked it and decided to keep it so he could use it. The OXA machine was a prediction machine kind of like the sundial. But the sundial is much more clear. In some of the lore about the sundial some psions roughly say “it is much clearer unlike the oxa’s mad ramblings. Also msund12 is Mia sundered. A important scientist who did lots of stuff with vex it’s a long story but she also founded neomuna. Also otsot help caitail overthrow calus because he was going to free the psions and that would get rid of her Title as one of the few free psions.