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Date: July 08, 2020, 08:21:52 AM


Why have humans never found aliens?: Science : - Nigeria's Premier Online Forum


Why have humans never found aliens?

By: dayan (M) |Time : October 16, 2018, 07:47:18 AM
Perhaps they haven’t been looking hard enough

alien life.jpg

“IF ALIENS are so likely, why have we never seen any?” That is the Fermi Paradox—named after Enrico Fermi, a physicist who posed it in 1950.

Fermi’s argument ran as follows. The laws of nature supported the emergence of intelligent life on Earth. Those laws are the same throughout the universe. The universe contains zillions of stars and planets. So, even if life is unlikely to arise on any particular astronomical body, the sheer abundance of creation suggests the night sky should be full of alien civilisations. Fermi wondered why aliens had never visited Earth. Today, the paradox is more usually cast in light of the inability of radio-telescope searches to detect the equivalent of the radio waves that leak from Earth into the cosmos, and have done for the past century.

Thinking up answers to this apparent contradiction has become something of a scientific parlour game. Perhaps life is really very unlikely. Perhaps the priests are right: human beings were put on Earth by some creator God for His own inscrutable purposes, and the rest of the universe is merely background scenery. Perhaps there are plenty of aliens, but they have decided that discretion is a safer bet than gregariousness. Or perhaps galactic society avoids communicating with Earth specifically. One chilling idea is that technological civilisations destroy themselves before they can make their presence known. They might blow themselves up after inventing nuclear weapons (an invention that, on Earth, Fermi had been part of), or cook themselves to death by over-burning fossil fuels.

In a paper published last month on arXiv, an online repository, a trio of astronomers at Pennsylvania State University have analysed the history of alien-hunting and come to a different conclusion. In effect, they reject one of the paradox’s main pillars. Astronomers have seen no sign of aliens, argue Jason Wright and his colleagues, because they have not been looking hard enough.

Dr Wright’s argument echoes that made by another astronomer, Jill Tarter, in 2010. Dr Tarter reckoned that decades of searching had amounted to the equivalent of dipping a drinking glass into Earth’s oceans at random to see if it contained a fish. Dr Wright and his colleagues built on Dr Tarter’s work to come up with a model that tries to estimate the amount of searching that alien-hunters have managed so far. They considered nine variables, including how distant any putative aliens are likely to be, the sensitivity of telescopes, how big a portion of the electromagnetic spectrum they are able to scan and the time spent doing so. Once the numbers had been crunched, the researchers reckoned humanity has done slightly better than Dr Tarter suggested. Rather than dipping a drinking glass into the ocean, they say, astronomers have dunked a bathtub. The upshot is that it is too early to assume no aliens exist. Fermi’s question is, for now at least, not a true paradox.


Re: Why have humans never found aliens?

By: dayan (M) |Time : October 16, 2018, 08:04:51 AM
The article simply ignored perhaps the most probable question:
What if they are here already and look just like everybody else?
The flaw in this "alien life search" is that the searchers are looking for beings that don't look like humans.
What if they look like humans?
Heck what if all of us are aliens from different parts of the universe; stars, constellations, galaxies, even parallel universes or multiverse?
Scientists can be funny sometimes. They claim to be open minded, but then bottle up or box up knowledge to fit predefined or pre-agreed concepts, or "protocols of settled facts".
This "quarantining of knowledge" is a problem or an obstacle that impede total knowledge.

For instance, scientist would totally ignore things like dreams that end up happening the way it was dreamt.
Some of my dreams are just like that. I sometimes see things that would happen days and weeks before they happen. The ones I don't like, I pray against them and they don't happen. Fact.
A lot of people are like that too.
But scientist would simply ignore such things.

Personally sometimes I think that the way some human beings conduct themselves totally differently from others may be proof that we all don't come from the same part of the universe.

That is why we fight wars that don't make sense!

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