I take your other comments to imply that finding one RTSC would prove or at least suggest that a path exists to some significant industrial usage of RTSCs down the line. I don't think that's correct, and I'm arguing about why I don't think that's correct. Of course, I may have misunderstood your comments.
Let me rewrite my original sentence that bothered people, so it's a bit clearer. Here's the original:
"""Room temp Superconductors, along with fusion, would affect the economy profoundly. What the exact effect on rent would be is hard to predict but under the "post-scarcity society" mental construct, having infinite energy at zero cost (amortized) would presumably make the price of housing change."""
Change "would" to "could" in the first sentence to make it conditional. Add an additional sentence at the end pointing out that house prices are complex and many factors influence them, and another pointing out that while sometimes we can achieve a property in a material, but fail to realize its industrial potential".
It does seem reasonable to posit that RTSCs, even if they failed to realize their industrial potential- could have an affect on rent. Rent is (to a zeroth order approximation) determined by a wide range of macroeconomic activities, and if we reordered our entire society around improving RTSCs, that could have indirect effect on the cost of housing.
All of that was implicit in my original text- and I had hoped to make that clear- rather than making a strong statement like "rent will go down if RTSCs exist".
RTSCs are not like cold fusion - as far as we know, they should be possible, so finding one would not upend science in some huge way. If the ones we find don't also happen to have all the other interesting properties we need, then they may never have any significant impact at all. This is what seems to be missed.
If LK-99 had been an RTSC, it should still not have been major news outside materials science research, since it wouldn't have had any direct impact on the economy, nor any predictable pathway to one. Some other future discovery, if it ever happened, would have been the one that actually mattered. That potential future discovery may have built on the current work, but whether it would be 1 year down the line or 10 or 100 or never would not be knowable.