Second, objects that are similar in presentation are inherently different.

attention was captured. The attentional filter is

With a processing limit of 120 bits per second, this means you can barely understand two people talking to you at the same time. Under most circumstances, you will not be able to understand three people talking at the same time.

The length of a year is determined by the time it takes the earth to circle the sun; the length of a month is (more or less) the time it takes the moon to circle the earth; the length of a day is the time it takes the earth to rotate on its axis (and observed by us as the span between two successive sunrises or sunsets).

skin. It is not the biology of these organisms that unites them, but their function in our lives—or our goal of trying to keep them on the outside of our bodies and not the inside.

During the flow state, attention is focused on a limited perceptual field, and that field receives your full concentration and complete investment. Action and awareness merge. You cease thinking about yourself as separate from the activity or the world, and you don’t think of your actions and your perceptions as being distinct—what you think

Switching attention comes with a high cost.

Eastward travel is more difficult than westward because our body clock prefers a twenty-five-hour day. Therefore, we can more easily stay awake an extra hour than fall asleep an hour early. Westward travel finds us having to delay our bedtime, which is not so difficult to do. Eastward travel finds us arriving in a city where it’s bedtime and we’re

This ability to recognize diversity and organize it into categories is a biological reality that is absolutely essential to the organized human mind.