cosmic timescale Quotes

The cosmic calendar compresses the local history of the universe into a single year. If the universe began on January 1st it was not until May that the Milky Way formed. Other planetary systems may have appeared in June, July and August, but our Sun and Earth not until mid-September. Life arose soon after. We humans appear on the cosmic calendar so recently that our recorded history occupies only the last few seconds of the last minute of December 31st.

The first ten million years were the worst," said Marvin, "and the second ten million years, they were the worst too. The third ten million years I didn't enjoy at all. After that I went into a bit of a decline.

We are living in a very pivotal time. The time that we inherit from science is a time to humble you, to dwarf you. It tells you that the sun will not fluxuate for another billion years, that species come and go, and, in other words, on a temporal scale you don't matter. And that now doesn't matter. But when you look at the release of energy, the asymptotic speeding up of processes, we tend to be xenophobically oriented toward the human.

The planet earth has a life span of eight billion years, give or take a few million. People have been around for approximately forty thousand years-a virtual blink in the cosmos. It is sad that we as a species are ravaging the natural world so fast that we are jeopardizing our survival. If we wipe ourselves out, it would be the height of folly, but the earth will survive even us. It will eventually restore itself. It might take a few thousand years, and it won't be just as it was before, but its life is stronger than death.

Our individual life is brief, and perhaps the whole life of mankind will be brief if measured in astronomical scale

Most educated people are aware that we are the outcome of nearly 4 billion years of Darwinian selection, but many tend to think that humans are somehow the culmination. Our sun, however, is less than halfway through its lifespan. It will not be humans who watch the sun’s demise, 6 billion years from now. Any creatures that then exist will be as different from us as we are from bacteria or amoebae.

Let me put it in a rather larger picture framework. Let's go to the longest time frame, the time frame of the life of our sun. As a star, our sun is about halfway through its life cycle. In the long run, we only have a couple of billion more years likely that we can inhabit this planet. By that time, we're going to have to be out of here before our sun dies. Now, I don't think we need to wait that long, and we certainly shouldn't wait that long. At the moment, we are not on a sustainable path.

After sleeping through a hundred million centuries, we have finally opened our eyes on a sumptuous planet, sparkling with color, bountiful with life.

but even if we survive the collapse of our sun, we will not survive forever.

We're the last billionth of a second in the evolution of matter.

The human race, whose intelligence dates back only a single tick of the astronomical clock, could hardly hope to understand so soon what it all means.