Don’t be an idiot. Leftist housing looks like mass manufactured concrete and gyprock, supplemented by packed earth where appropriate, and probably some cardboard/glass/LDPS. At least for the next half a millenia or so.

Wanting to be approximately decent doesn’t overcome physics.

We can build a world where people live densly and affordably without inventing fantasy bullshit.

Fun spray of fallacies there.

Starts with Ad-hominem (plausibly/presumably projection), proceeds through a lack of a constructive argument/engagement (ignoring what I said) with false dichotomy, appeal to status quo, appeal to authority, begging the question, circular argument, ... and seems like incurious arrogant naive realism, and lack of an educated mind (as in the expression "it is the mark of an educated mind to be able to entertain an idea without necessarily accepting or rejecting it).

You assert "Leftist housing looks" only one way. ... So anarchist or agrarian housing are not "leftist" in your meaning of "leftist" (like it's only the one type) are not "leftist"? Sounds like circular argument, appeal to definition, begging the question, a cherry picking lie of omission, a false dichotomy, appeal to cynicism, reification (new term to me). and whatever else I missed. Gets me wondering if this is a case of "received opinion" that's not been introspected upon and scrutinised.

Perhaps for a more constructive argument, you could elaborate on what specifics of "physics" you think refute the possibility specific to my thought experiment I invited readers to imagine. Otherwise it looks like handwaving an appeal to authority to close the argument.

"We can build a world" amuses me, for the open positivity opening, and the limitation of just "world", because much of the suppressed technology that avails such vast construction overlaps with the technology that avails all space to us (not limiting us to just a world). Though the amusement is short lived with the rest of that sentence falling to the false dichotomy, and the dismissive presumptive strawman for the ending portion of that false dichotomy.

I look forward to your elaboration on the physics aspect of your counter-argument. Or better yet, your entertaining the idea in curiosity, engaging in the thought experiment, leaving the incurious cynical presumption behind, getting constructive in a "how can we" rather than a "stupid cant".

[Edit: PS, just for a fun extension to this, bouncing off a piece of an llm's dubious analysis, that I looked at after hastily churning out ^,

capitalist/neoliberal housing also relies on specific materials and technologies, yet its limitations are rarely framed as "physics" but as market failures or policy choices. Funny how ‘physics’ only becomes an insurmountable obstacle when discussing leftist or egalitarian housing. When luxury skyscrapers or McMansions are built, we call it ‘innovation’ or ‘market demand’—not an immutable law of nature. Why the double standard?

reminds of a fun idea asserted emphatically as an invitation to entertain in the recentmost episode of derp with kurp that "if communism didn't exist, capitalism would have to invent it" (paraphrased from memory ~ works better in original context/video/wording). ~ (albeit apparently using the newspeakified definition of "communism", obviously not as originally coined by anarchists at least 5 years before Marx usurped it and handed it over to the tankies, authoritarians, totalitarians, fascists etc to wield as a means to abuse us by).]