Well, as I started to trace back our love of colour, I found that some researchers see a connection to our evolution. Colour, in a very primal way, is a sign of life, a sign of energy. And the same is true of abundance. We evolved in a world where scarcity is dangerous, and abundance meant survival. So, one confetto which happens to be the singular of confetti, in case you were wondering. Isn't very joyful, but multiply it, and you have a handful of one of the most joyful substances on the planet. The architect Emmanuelle Moureaux uses this idea in her work a lot. This is a nursing home she designed, where she uses these multicolored spheres to create a feeling of abundance. And what about all those round things I noticed? Well, it turns out neuro scientists have studied this, too. They put people into MRI machines, and they showed them pictures of angular objects and round ones. And what they found is that the amygdala, a part of the brain associated in part with fear and anxiety, lit up when people looked at angular objects, but not when they looked at the round ones. They speculate that because angles in nature are often associated with objects that might be dangerous to us, that we evolved an unconscious sense of caution around these shapes, whereas curves set us at ease.