2 ideas from Edward M. Hubbard, each explained in a minute and credited to the original work. Free on Savvy.
Shown a spiky shape and a rounded blob and asked which is 'bouba' and which is 'kiki,' around 95% of people across many different languages pick the same match — round shape 'bouba…
— V. S. Ramachandran & Edward Hubbard, Synaesthesia: A Window Into Perception, Thought and Language
Shown one spiky shape and one blobby shape, people overwhelmingly call the spiky one 'kiki' and the round one 'bouba' — a pattern that holds across languages, alphabets, and even i…
— Vilayanur S. Ramachandran, Edward M. Hubbard, Synaesthesia — A Window Into Perception, Thought and Language