Stanisaw Lem

Is it better to read him in English, Spanish or Russian?

All of them.

>I think the biggest reoccurring theme with the works I've read is the red pill of fundamental incompatibility and incomprehensibility.
Quintians in Fiasco are entirely, wholly comprehensible to humans as a civilization. The communications breakdown happens not because they are aliens, but because they are aliens, but because they are their own civilization and human attempts at contact were fundamentally incapable of not fucking everything up for them, so they just adopted a policy of not responding to contact. And humans just didn't take silence for an answer.

The doublers in Eden are also very much comprehensible and establish a productive contact with humans.
Both Doublers and Quintians have very much human-like industrial civilizations, even.

In general, whenever Lem's works feature humans encountering anything that can be commonly understood as an "alien civilization" - there's rarely any fundamental obstacles for mutual understanding. And when they encounter weird shit - it's usually humans' own keen disrespect towards anything that is not immediately "exploitable" that causes troubles.

The point here is that everything that Lem says about "incomprehensible aliens" applies to regular humans as well. Fiasco is a metaphor for Cold War.

From Lem's own interviews and commentaries, the "weird aliens" elements in his works were largely inspired by human-made disasters, from technological catastrophes to proxy wars and politicking of global superpowers. People trying to reshape the world when they don't actually understand shit, and don't even try to understand it, just seeking to use it.

All the "incomprehensibility" elements are basically Stanislaw seething at human anti-intellectualism, and anti-intellectualists acting retarded even in the context of their own beliefs, and the utilitarianism's domination in human epistemology:
>"Ok, yeah, you don't understand <the thing> and you don't even want to understand it, alright you precious little troglodyte caveman you, but let's look at how you act about <the thing> you don't understand. Do you leave it alone? Do you avoid it, like a sane hairless ape obeying it's functional survival instincts would? Do you at least develop some reverence for these things that don't fit in your retard brain? No, no, that would be too nice, and we can't have nice things, so no, you don't do that! You would much rather fuck with <the thing>! Bite and taste <the thing>, throw it at walls, cover <the thing> in your smelly excrement, wave it around and scream! And when <the thing> finally blows up in your retard face - you cry about how unfair it is, and how everything else in the entire universe is to blame for your stupidity!"
His Master's Voice has the most blatant metaphor for this, and Golem XIV has the titular character GoLEM literally spell this out.

Maybe I misinterpreted the quoted post, anyways yeah, all of the books I mentioned are great