“Physicists have worked out how to look at the smallest sizes and shortest time that some of them believe can exist.
On a human scale, an atom is inconceivably small. But size is relative. On the Planck scale—the smallest that physical theory recognises—atoms are huge. At this scale, named after Max Planck, the founder of quantum theory, many physicists envisage space and time as being grainy, rather than continuous.” – The Economist
Thank goodness. Xeno’s Paradox had always bothered me, but now it seems there is no “half-way” at some level. Somehow that’s reassuring.
Read the full article .