> How many kids/teenagers know what 0x20 is these days without doing a WEB search ? I mean I still had to stop for a brief moment and do the arithmetic in my h

> How many kids/teenagers know what 0x20 is these days without doing a WEB search ? I mean I still had to stop for a brief moment and do the arithmetic in my head as I do when reading any number in a base other than 10. Unless you mean recognizing "0x" as a prefix indicating the following number is in base 16?