MI theory continues to be challenged by traditional psychologists and conventional educators as being invalid.
Criteria used by Howard Gardner-
To qualify as an intelligence, each set of abilities has to fair reasonably well in meeting 8 criteria.
1- identifiable cerebral systems
2- evolutionary history and plausibility
3- core set of operations
4- meaning encoded in a symbol system
5- a distinct developmental history & mastery
6- savants, prodigies and exceptional people
7- evidence from experimental psychology
8- psychometric findings
. How does Existential thinking fare for these 8 criteria?