Open Your Mind » The Drake equation – Are we alone in this universe?
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The Drake equation – Are we alone in this universe?

The Drake equation – Are we alone in this universe?

Written by Carlos Heron

25 May 2014

No doubt that it is a selfish and ignorant question from an underdeveloped civilization like ours; we are not the center of the Galaxy, we are not the center of the Universe and we might not be alone in the Universe… if you disagree you can try to otherwise convince the statistics.

The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy:

N = The number of civilizations in The Milky Way Galaxy whose electromagnetic emissions are detectable.

R* = the average rate of star formation in our galaxy.

fp = the fraction of those stars that have planets.

ne = the average number of planets that can potentially support life per star that has planets.

fl = the fraction of planets that could support life that actually develop life at some point.

fi = the fraction of planets with life that actually go on to develop intelligent life (civilizations).

fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space.

= the length of time for which such civilizations release detectable signals into space.

What is the result?

There are probably 100.000.000 civilizations in the Milk Way galaxy alone; not to mention that there are around 100.000.000.000 galaxies in the universe.

The universe has been expanding during the last 14 billion years; the Homo sapiens proceeded to colonize all the continents just 100.000 years ago. Why did we start to discover the technology during the last 20.000 years and the modern technology just on the last 150 years? What did we do during the remaining 99.850 years on the earth? It is weird, isn’t it?

Can you imagine how will be the technology 100 years from now? Can you imagine an intelligent civilization with 1.000.000 years of history, and another with 1.000.000.000 years?

Do you agree now that we are a young and undeveloped civilization?

Open your mind.

Heron

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