The claim was that someone would be not just very slow but completely incapable of completing a task even given an arbitrary amount of time. That would mean the

The claim was that someone would be not just very slow but completely incapable of completing a task even given an arbitrary amount of time. That would mean there’s some kind of fundamental difference between the two people, which is just a ridiculous claim. What one person can accomplish in three years can almost certainly be accomplished by another in ten provided they are in the same profession and competent.