The Fermi paradox ... Why we haven't contacted ET and ET hasn't contacted us or visited?


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The probable real reason is that every society of technologically advanced sentient beings eventually overpopulates, depletes its resources, and destroys its environment billions of years before its sun burns out.

Ultimately distant alien advanced civilizations will have caused their own extinction like the human race on this planet is likely to do.

The belief that ET wants to visit and take over our planet and steal our resources or visit and save us from ourselves is a fantasy.

Why would ET respond to human attempts at contact?

Why would ET give us free technology as some believe they would when ET probably has stronger IP Protection than humans do?

Even if ET existed it would be unlikely to establish contact because they would get no benefit from doing so.

Fermi paradox
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This article is about the absence of evidence for extraterrestrial intelligence. For a type of estimation problem, see Fermi problem. For the album by Tub Ring, see Fermi Paradox (album).
A graphical representation of the Arecibo message, humanity's first attempt to use radio waves to actively communicate its existence to alien civilizations
c, named after Italian-American physicist Enrico Fermi, is the apparent contradiction between the lack of evidence for extraterrestrial life and various high estimates for their probability (such as some optimistic estimates for the Drake equation).[1][2]
The following are some of the facts and hypotheses that together serve to highlight the apparent contradiction:
  • There are billions of stars in the Milky Way similar to the Sun.[3][4]
  • With high probability, some of these stars have Earth-like planets in a circumstellar habitable zone.[5]
  • Many of these stars, and hence their planets, are much older than the Sun.[6][7] If the Earth is typical, some may have developed intelligent life long ago.
  • Some of these civilizations may have developed interstellar travel, a step humans are investigating now.
  • Even at the slow pace of currently envisioned interstellar travel, the Milky Way galaxy could be completely traversed in a few million years.[8]
  • And since many of the stars similar to the Sun are billions of years older, Earth should have already been visited by extraterrestrial civilizations, or at least their probes.[9]
  • However, there is no convincing evidence that this has happened.[8]
There have been many attempts to explain the Fermi paradox,[10][11] primarily suggesting that intelligent extraterrestrial beings are extremely rare, that the lifetime of such civilizations is short, or that they exist but (for various reasons) humans see no evidence.
Although he was not the first to consider this question, Fermi's name is associated with the paradox because of a casual conversation in the summer of 1950 with fellow physicists Edward Teller, Herbert York and Emil Konopinski. While walking to lunch, the men discussed recent UFO reports and the possibility of faster-than-light travel. The conversation moved on to other topics, until during lunch Fermi allegedly said suddenly, "But where is everybody?" (although the exact quote is uncertain). ...


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Dyson spheres—our intelligent, mature alien civilisation turns the planets etc into a shell around their sun, capture all that energy. Not conducive to space exploration.


Active member
Dyson spheres—our intelligent, mature alien civilisation turns the planets etc into a shell around their sun, capture all that energy. Not conducive to space exploration.
Using resources they have already depleted?