Simplify the following text for a Grade 8 native English-speaking person.
Original: His foreshadowing of postmodernity has been noted by philosophers as diverse as Jean Baudrillard , Fredric Jameson and Slavoj Å 1\/2 iÅ 3\/4 ek .
Simplified: The things he wrote about postmodernity have been noted by many philosophers . Among them were Jean Baudrillard , Fredric Jameson and Slavoj Å 1\/2 iÅ 3\/4 ek .