Spiky hair spikier than this. Kind of orange hair.

Because we instinctively find, or create, a pattern between the round shape and the round sound of Bouba, and the spiky shape and the spiky sound of Kiki.

If you are like 98 percent of other people, you will identify the round, amoeboid shape as Bouba, and the sharp, spiky one as Kiki.

And from that little egg, they pass through this spiky little porcupine fish stage, reminiscent of their ancestry, and develop this is their little adolescent stage.

But the interesting thing about these computer virus infections was that, if you look at the rate at which the infection worked, they show this spiky behavior that you're used to from a flu virus.