The American ethnobotanist and philosopher Terence McKenna speculated that the fruit of the tree is a symbolic allegory for the entheogenic mushroom Psilocybe cubensis, and that the expansion of perceptual and cognitive awareness that resulted from ingestion was responsible for the acquisition of "knowledge".
It's clearly a crisis of two things: of consciousness and conditioning. We have the technological power, the engineering skills to save our planet, to cure disease, to feed the hungry, to end war; But we lack the intellectual vision, the ability to change our minds. We must decondition ourselves from 10,000 years of bad behavior. And, it's not easy.