In the world of very, very, very small objects, there's a line. This line marks the threshold between comfort and discomfort, certainty and uncertainty, determinism and probability.
Physicists know about it; philosophers know about it. It's a size-line. Big things, like bowling balls and people and cells, are on one side of the line. This is the side that is governed by classical physics. Here, the laws of Newton and determinism and predictability reign supreme. You can throw a baseball and figure out where it's going. It's a comfortable side.
The other side is less comfortable.
Continue reading 'When to be a wave, when to be a particle.' >
