I sometimes hear the claim that innovation in the physical world has stagnated since around 1970. More specifically, chapter 1 of The Rise and Fall of American Growth by Robert J Gordon claims that there has been basically no innovation in clothing other than changes in fashion. This is somewhat contrary to my intuition (although I definitely believe that innovation in the 50 years before 1970 was greater that in the 50 years after), and price of insulation seems like a relatively objective metric for this.
My favourite type of response would be time series data of clo per inflation-adjusted dollar, but I'd also appreciate people's subjective experience of this.
Instead of a VPN, you can use Tor Browser for this. I just tried it, and though it may take a few relaunches, Tor Browser will eventually connect via an exit node in a non-EU country, and you’ll be able to visit the site. (It does also work fine for me without Tor, of course, as I am in the U.S.)
EDIT: As for the “too many requests” thing, that’s an artifact of gwern’s link-preview-generating setup; this is one of the occasional failure modes. Nothing terribly special going on there—the feature is still a bit experimental, is all, and has the occasional kink. No doubt gwern will fix this one soon.