“I think we were so happy to develop all this critique because we were so sure of the authority of science,” Latour reflected this spring. “And that the authority of science would be shared because there was a common world.”

Google encouraging site admins to put reCaptcha all over their sites, and then sharing the resulting risk scores with those admins is great for security, Perona thinks, because he says it “gives site owners more control and visibility over what’s going on” with potential scammer and bot attacks, and the system will give admins more accurate scores than if reCaptcha is only using data from a single webpage to analyze user behavior. But there’s the trade-off. “It makes sense and makes it more user-friendly, but it also gives Google more data,”

For instance, Google’s reCaptcha cookie follows the same logic of the Facebook “like” button when it’s embedded in other websites—it gives that site some social media functionality, but it also lets Facebook know that you’re there.