So, I know that in the Horizon people can look different they look different than they would have otherwise, given what I've seen in threads from that event. Would it possible for characters to be either shorter or taller than they would normally be while in the Horizon? And if so, are there any upper/lower limits on how much their height could change?

Also is there any more in-depth info on the Horizon that wouldn't involve trying to find old event posts? I've been shown a bit of the event info for it that suggests that even new arrivals would get hit with the first-time amnesia but unless I've missed it somewhere there's nothing on the setting/info pages that mentions that. (Or mentions the Horizon much at all, for that matter.)