I do some of my best thinking on my bike. Or on my skis. Or in the shower. Or when I’m drifting off to sleep. I suppose that’s because, except for gravel, snow snakes, frothy soap and the Sandman ...

Fast sensory spikes, slow reflections, and everything in between are layered together into a single stream of experience that feels seamless. The emerging picture from neuroscience is that this blend ...