This is a slightly dumb article about some incredibly interesting research:
The key part is that 1) different languages are spoken at different speeds – i.e. there is a substantial difference in the number of syllables uttered per second by typical speakers of a range of different languages, BUT, 2) this is inversely correlated with the “information density” of the language, hence each language conveys information at approximately the same rate. In other words, languages that are spoken quickly tend to use more syllables to say the same thing than languages that are spoken slowly.
Isn’t that awesomely cool?