I was watching Bill Moyer’s interview with Joseph Campbell in the first part of The Power of Myth yesterday. Campbell was expounding on his "Hero With a Thousand Faces" theory – the fact that many of the motifs in mythology are recurrent, and may have had a common source. Good stuff.
At one point he was describing the motion of a flowering vine as it wound up his porch in Hawaii. And then he said something that made me sit up bolt upright:
"Now you can’t tell me that that leaf doesn’t know where the sun is going to be. … That’s a form of consciousness."
Erm, well I think it’s heliotropism, Professor Campbell. And if we’re going to redefine that as consciousness, then I reckon I’m going to have to call the thermostat on my central heating system conscious as well. Sometimes, you can have such an open mind that your brain falls out…

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