It means something is not understood. Could be the product, the code in question, or computers in general. 90% of coders seem to be lacking foundational knowled

It means something is not understood. Could be the product, the code in question, or computers in general. 90% of coders seem to be lacking foundational knowledge imho. Not trying to hate on anyone, but when you have the basics down, you can usually see quickly where the problem is, or at least must be.