Synesthesia
Another example of how weird we are:
Look at the image to the left in this hebrew wikipedia article, and read the text.
BTW, surprisingly, I didn’t find this exact image at the English wikipedia as well, and too bad for it. I don’t have the time to put it in now though.
Update – added a short description of the experiment:
It’s an experiment that demonstrates Synesthesia. I hope this experiments work in English as well.
Look at this picture, and decide which shape to name “Booba” and which “Kiki”.
Once you’ve made your choice, scroll down.
95% to 98% of people choose Kiki for the orange angular shape and Booba for the purple rounded shape.