1) Last hatch, I had single egg that hatched a full two weeks behind everyone else. Unlike my staggered hatch this time (which is just new eggs), it was a surplus egg from the original shipment that just didn't go into the incubator until D14 when I was able to clear some space. It had a partner that didn't develop, so this little tiny baby was alone and I had no choice but to put her in the brooder with everyone else and hope for the best. We named her Little, and she was completely fine. Better than fine, actually. She could huddle under the other chicks for warmth, and learned to play tough. She has Marans in her, so now she's one of our biggest chickens, and the name is an ironic reminder of when she was a tiny floof ball next to what at the time appeared to be relatively large raptors stomping around.
2) Thank you for providing this anticipation-building time-burner (this video, and your hatching livestream).
Furthering that end, I found this video documenting a shell-less incubation, which is just like, the coolest thing ever:
I am also inspired by you to figure out how I can convert my toddler's retired babycam into a hatch livestream myself!