“I have spent a great deal of time over the last 40 years doing research on us. Not any sub category of us, but the ‘us’ that includes all of us. One of the facts I uncovered that I never expected to find— our brain size and capacity has not changed for thousands of years. Evolution does not make exceptions, even for those at the top of Earth’s food chain.
“What has changed are the goals we use our brains to achieve. From today back through most of our recent history, short term goals (equal to or less than the span of a human lifetime)— whether personal, local, religious, or national— are the predominate focus of human mental activity.
“I am walking to promote Intergenerational Justice because I believe our children and all future humans will suffer if we don’t add their well-being to our list of goals and make it part of our current mental activity. We can’t update our brains, but we can update our goals.”
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“Our brain size and capacity has not changed for thousands of years…What has changed are the goals we use our brains to achieve.”