Yeah, mid-1980s the thing incoming students had to unlearn was BASIC, not anything with curly braces. (Source: I was a 6.001 Lab TA at the time.) Of course, t

Yeah, mid-1980s the thing incoming students had to unlearn was BASIC, not anything with curly braces. (Source: I was a 6.001 Lab TA at the time.) Of course, the next class on the rotation used Clu, where you had to unlearn "recursion is free".