There's something very nostalgic about standing in front of a large audience and walking them through scrolls and then expounding on the principles of magic. She has more to say at this point, though, she's dissected more spells into their component pieces and Olórin's been around for a while now to help explore vast combinatorial explosion. The lecture takes a few hours even with most of the content offloaded into "look it up, it's in the files". And then there is food and mingling for anyone who doesn't have to race off immediately to do important multiverse things!
"I l-l-like my Materia family and they all just want me to be safe and I love my parents and they just want me to be safe and Boots - I think Boots wants me to be me more than she wants me to be safe and I want to matter and be powerful and understand everything and fix everything and be good enough -"
Cam has absolutely no idea what to do with this neurotic tiny genius but he can put a wing around him for added hug layering?
This will distract him back on track on convincing Cam that he wants wings, that's something.
"Maybe you should ask Boots what she thinks, in case there is some very good reason not to have them that I'm not thinking of."
Squeeze. "I'm sorry I w-w-wasn't smart enough - didn't get interdimensional travel quicker -"
"Yeah it is! If not for the stupid stupid timeslide I could have had it quicker - I didn't even notice until Bella landed -"
"Kib only noticed it because he could compare it against his dreams, it's apparently really subtle."
And eventually he pops them both to the spot in Revelation for teleporters and then he tries to use his wizardry teleport to go to Bella but it doesn't work and he sniffles and makes a surprised noise and uses his sorcery one instead and it doesn't end up mattering because Boots is right where he expected her.
"Nothing happened I was just feeling really sad and hopeless and Cam wasn't doing any of the unhelpful reactions so I just. Told him about it. And then I figured out I should come say sorry for scaring you."
Boots scoops him up. "It's okay, I found you soon enough and you were fine after all -" Squeeze. "What are you feeling sad about?"
"...I'm not good enough to fix everything and maybe I never will be and everything in the multiverse is sort of my fault because if it's not then that means I don't matter at all so it's better to just feel personally responsible for all of it, every minute of Angband -"
"Oh no sweetheart," says Boots, as Cam quietly vanishes, "that's not how it works, there's a lot of room between mattering at all and mattering enough for the entire multiverse to be all up to you -"