Greetings, Earthlings! I come in peace!
(TL;DR at the bottom, this kinda turned into a rant about a book I'm currently reading. Also maybe skip if you don't want light spoilers about Children of Time and Pandora's Star)
EDIT: Thank you so much for all the recommendations! They're all going on the list and will be part of my quest for alien Weirdness! <3
Recently, I was reading a reddit thread asking about the most "alien Aliens" in Sci Fi. Something truly outside of the human experience or understanding.
Two recommendations I saw repeated were Children of Time and Pandora's Star. So, looking for some Weirdness, I decided to read both of them (well, in fairness, I had read Children of Time already, but I picked it back up to refresh my memory).
Right now, I am reading Pandora's Star, and so far, I really enjoy it. Mostly, I've been looking forward to the appearance of MorningLightMountain, the famously alien Alien I had heard so much about. Now, I've just reached "that" chapter in the story, and I don't want to spoil too much for anyone wanting to participate in this thread who hasn't read the book yet, buuut it's a bit of a letdown in terms of the "Alien-ness". As was Children of Time.
If any of you know about the famous paper "What is it like to be a bat?" by Thomas Nagel, I find that both of these books serve as illustrations to one of its central points: We cannot know what it is like to be a bat for the bat. We can only imagine what it would like to be a human inside a bat body. And that's what's happening in both of the books I'm talking about:
To put it polemically (and I want to stress that I greatly enjoyed or am greatly enjoying both stories, actually): The "Aliens" in Children of Time are "What if Humans, but Spiders?" and the Prime in Pandora's Star are (so far) "What if Humans, but weird Hivemind blobs?"
The biology of the Prime is alien and interesting (also completely nonsensical from a molecular biology perspective, but it's Sci Fi, who cares?), but their actions, their motivations, their psychology is literally just "What would a human do and think if he was this creature(s)?"
The whole thing turns a bit silly in a classic Alien contact horror sequence where the aliens vivisect some humans and the Alien (which is a multicellular, waterbased lifeform btw) is able to quickly understand the human nervous system but is completely nonplussed by the concept of a circulatory system (we get the classic "Oh my, there's red juice coming out of them when I cut them!" trope, hooray!), but I could understand that if the alien's perspective wasn't so very human, just dumbed down enough at the right moments for shock value and then made suspiciously intelligent when it needs to figure something out to drive the plot forwards.
I can tell that I'm ranting at this point, and I really want to emphasize again that I am enjoying these books greatly - I'm just once again disappointed by an Alien that turns out to just be a human wearing alien skin.
I want to note that it is of course possible to write a terrifyingly strange Alien if you never show its perspective - the first example that comes to mind is The Thing, where we are left wondering what it would be like to be assimilated by the Thing; if you would even know or if you would think you're still yourself until there's a gaping maw in your belly eating your comrade's arms... Until the very end, we don't know if maybe even MacReady was assimilated at some point. So these alien Aliens exist, but it seems that writing from their perspective always demystifies them and turns them into another Star Trek style human with a bone plate on its face and an aggression problem...
So, TL;DR: Do you think it's even possible to write a truly alien Alien, and if so, can you recommend me an example of such a thing? Is it possible to write about what the Alien feels like, or is every story from an alien perspective doomed to just be about weird-looking humans?