Does fast speech indicate higher intelligence?
There is no indication that fast speech is equivalent to a faster brain or higher IQ. Studies show that people who speak slowly communicate the same information using fewer syllables. By translating a text very accurately into different languages, scientists have calculated how many syllables different languages use to communicate the same information. Languages with little information per syllable are typically spoken with more syllables per second to compensate. The final result is the same.
According to another general theory, people who speak fast use the flow of talk to think aloud, whereas people who speak slowly do not start talking, until their message has been worded.
MOST INFORMATION PER SYLLABLE
English: 6.19 syllables/second – information/syllable: 1.08
Vietnamese: 5.22 syllables/second – information/syllable: 1
French 7.8 syllables/second– information/syllable: 0.99
Spanish: 7.82 syllables/second – information/syllable: 0.98
Horse race callers and auctioneers speak very fast, but nothing seems to indicate that they are more intelligent.