Pissthon Algebra

So you think [1,2]*2 = [2,3]?
Think harder you dumb nigger!
Because in Python [1,2]*2 == [1,2,1,2]

>>13
Neither does python. I think you missed my point. Just like end argument to STRING= can accept either an integer or a NIL value (the so called bounding index designator), python's slice (https://docs.python.org/3/library/functions.html#slice) can likewise take either an integer, or None, in which case it takes on some default behavior defined inside the function.
>>14
This... doesn't have anything to do with what I said.