Null character: The null character U+0000 is encoded as a 2-byte sequence 0xC0 0x80 instead of the single byte 0x00. Supplementary characters: Characters whose code points are above U+FFFF are encoded ...

Main character syndrome is the perception that your life is a story or a movie where you’re the central character. A term that was born on social media, it’s not a true syndrome or mental disorder.