@bedir than is insisting that ethereal applies to humans. Of course, ignoring the fifteen other adjectives that don't apply to humans, but, hey.
No they didn't. They said that humans have used the word "ethereal beauty" to describe places such as waterfalls.
Which, people do, as is obvious if you google "places of ethereal beauty." Because one of the
several definitions of that word is "heavenly" or "otherworldly." Ethereal doesn't
just mean "insubstantial."
But, I would like to thank
@bedir than for providing the perfect avenue to demonstrate how halflings aren't any different from humans. As I posted above, you can replace every instance of halfling with human in their description and it works perfectly fine. But, no, you cannot do that with elves. So, let's see if you can do it with other races.
goes off to get his phb and start typing out the introduction to different races in the PHB
Let's just say you're right here, and you
can replace halfling with human but you can't replace elf with human.
So what? Your only arguments against them is that they are too much like humans (despite nearly 200 pages telling you that other people disagree with that belief, and why) and that they take up room in the PH (despite that you have no idea what will happen in 6e's PH, you can't time travel and change 5e's PH, and even if halflings had been excluded from them, they wouldn't have included a different race in them,
and people would have been annoyed just like they were when gnomes got booted from 4e). Your only
other argument is your completely erroneous belief that the common/uncommon division of races actually
means something beyond the fact that those races have been around since the very beginning and the other races weren't... and that almost nobody even cares about it at all, except that it screws up alphabetization. Which is just part and parcel of 5e's terrible organization. Do you really think some newbie to D&D is trying to make a world and looking at the PH and saying "gosh, I wish I could have lots and lots of dragonborn in my setting and very few halflings, but the book says halflings are more common than dragonborn?"
And no, maybe humans aren't of "otherworldy" (ethereal!) origins like elves are... except for the ones that
are, because this is D&Dland and you can find humans anywhere, including the Ether (even if you were to ignore Planescape). And maybe humans aren't nigh-immortal... except for the ones that
are, because this is D&Dland and I'm sure there are nigh-immortal humans who aren't undead in some supplement or another (even if you were to ignore Mystara). As for everything else... yeah, you can substitute elf with human.