Only engineers have trouble understanding this. It can be a reasonable defense, and it has successfully been used in courts of law many times. The law is not a machine that compiles text like code literally. Imagine someone who coerces a dying or sick person to sign an agreement they couldn’t possibly be in a reasonable state of mind to understand what they were doing -- the law can and does invalidate such “contracts”. That is the same principle behind age of consent laws. The law could theorerically (and does) invalidate “agreements” which no one is reasonably expected to read and understand.
> The law could theorerically (and does) invalidate “agreements” which no one is reasonably expected to read and understand.
I haven’t heard of a single case where an agreement was voided because “no one could reasonably be expected to understand it.” Unless the language was so impenetrable or vague that the agreement itself could not be discerned. Lawyers tend not to write such agreements.