The master and his pupil picked up some Sushi at Sobey's, and sat in the park to eat it. "Why does supermarket sushi always come with this green spiky sheet?" the pupil asked. "Baran is the leaf of the aspidistra plant," replied the master. "It separates the eel from the avocado, and exudes phytoncides to preserve freshness." "But it's plastic," protested the student. "Yes," said the master. "Just as your iPod Nano is no longer vinyl."...