How Our Grandparents Perceive the World as Unchanging

Men can know a thing and yet know it quite ineffectively if it contradicts the general traditions and habits in which they live. [...] ONE of the most striking differences between the outlook of our grandparents and that of a modern intelligence today is the modification of time values that has occurred. By the measure of our knowledge their time-scale was extremely shallow. They had scarcely any historical perspective at all. They looked back to a past of a few thousand years and at the v...

 There is No "Smell Pixel"

There is no way to interpolate between two smell molecules. True, odors can be mixed together to form millions of scents. But the world’s smells can’t be broken down into just a few numbers on a gradient; there is no “smell pixel.” Think of it this way: colors and sounds can be measured with rulers, but odors must be looked up in a dictionary.