My experience is exactly opposite yours. I find it easier to come back to old Scheme code than to old code in C, Java, SQL, Bourne shell, Perl or PHP. Your ass

My experience is exactly opposite yours. I find it easier to come back to old Scheme code than to old code in C, Java, SQL, Bourne shell, Perl or PHP. Your assertion is false that it's easy to perform a usability test on a subject familiar with programming concepts but not exposed to syntax. It is not easy to learn programming without exposure to any language, so finding subjects for such a test would be difficult.