The “clickwrap” license—a legal concept that did not exist 30 years ago—is now one of the foundations of digital commerce. Simply by clicking “I AGREE”, millions of people every day enter contracts governing their substantial legal rights (including rights to privacy, intellectual property, and judicial review) without knowing what those contracts say. Of course, ignorance of the specific terms is not a problem unique to clickwrap agreements: people sign contracts without reading them all the time.

It is not “generally a defense to an action founded upon such agreement that the party did not read the contract, or was ignorant of its contents”. Miller v. Phoenix Mut. Life Ins. Co., 107 N.Y. 292, 296 (N.Y. 1887). This issue is well-known and has been the subject of substantial academic research, but there is little evidence that behavior would change materially if people were more saware of the rights they were giving up.