Would extraterrestrials really try to contact us? A few thoughts on the WOW Signal possibly debunked

With the WOW Signal possibly debunked, this leads us to a few questions.
The most important question is: Was it aliens? The narrowband radio signal – the ‘Wow Signal’ – that reached Big Ear telescope of the Ohio State University in 1977, was so strong that astronomer Jerry R. Ehman commented “Wow!” at the side of the printout of the measure. The signal had been received during a search for extraterrestrial intelligence project. Therefore it was reasonable that scientists thought that it might have been an attempt by extraterrestrials to contact us.

Now, the signal seems to have been finally decrypted, and scientists said that it had transpired to be no message from extraterrestrials after all. Instead, scientists were cited to have discovered that that the signal most likely was caused by a comet.

But this leads us to the question: Would aliens really contact us using radio bursts or radio signals? And would they accept that leakage of their technology could cause them being discovered by another civilisation?

Could other civilisations discover us humans because of our technology leakage? Well, yes, they could. The question is, do we want that?

I imagine that other species possibly would tell us, ‘Hey, are you mad? Do you know what kind of civilizations there are out there in the universe? Do you really want to lure them to the earth?’ If we imagine species like Giger’s aliens (you know, the ones from the Alien movies), I guess we really do not want to lure them here.

Stephen Hawking even warned that we ought not try to get the attention of other civilisations, because there could be evil civilisations, that could try to conquer the earth. We know that this is not so far-fetched, because we know that this is possible; we only have to look at earth’s history. When the Spanish discovered America, they conquered the continent and subdued the native people there. An alien species, especially a species that is very developed, could do the same to us. We know the way the native people in America were subdued; we do not want to find out what a civilisation, hundreds of thousands of years older than the humans, and way more advanced than the humans, could do to us if they’d attack and conquer our planet!
What if an extraterrestrial civilisation might think exactly like this? What if they are afraid of being discovered and subdued by an evil alien species? They would use some kind of contraption to avoid leakage of their technology. And then we cannot be sure that an extraterrestrial civilisation would use exactly the same technology. It could be possible that they do not use radio signals. Imagine a civilisation communicating using quantum communication. There wouldn’t be any leakage for us to examine, and maybe, there could be an alien civilisation near us and we wouldn’t notice. All we could examine would be the way the atmosphere is built up and whether the planet is in the Goldilock’s zone, and therefore could support life, or not.

If a species would attack this planet, they would not expect a developed civilisation, so the extraterrestrials there could use this as advantage. If they’d attack the earth, on the other hand, they’d know quite a lot about us, as we have sent years of tv programs, radio and other signals out into space. We might want to consider if we really want to have other civilizations know about the earth, or if we want to listen to Stephen Hawking and not try to lure alien conquerors near the earth.
What we can be sure, I guess, is that either way, if the extraterrestrials know about us and want to contact us, they will contact us.

Could Fast Radio Bursts really be leakage of an advanced alien spacecraft?

Fast Radio Bursts (FRBs) have led to many discussions about whether or not we might be on the verge of finding evidence for an advanced civilisation in a far away galaxy—as scientists still couldn’t discover where exactly the FRBs came from, the theory was risen that the bursts might have been emitted by a neutron star; or, that they actually could have been caused by some sort of humongous radio transmitter that was artificially created to power an alien spacecraft (https://www.cfa.harvard.edu/news/2017-09?utm_content=bufferc5af4&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer). Which is, I’ll admit, quite the cooler theory. But let’s look at what scientists say.
As we discover more and more exoplanets, some of them even in Goldilocks’ zone—meaning that their distance to their home star is such that they could bear liquid water and even support life, you know, like, not too warm but not too cold, either—, more people start to think that we should als discover alien civilisations on some of those exoplanets. OK, it might seem more realistic that we’d find bacteria on an exoplanet instead of an ancient, advanced civilisation building humongous sailing spaceships, but let’s say it could be aliens; we’d have to examine a few things.

Where is the source of the FRBs?

That’s the problem; scientists were not able to find the source of the weird signal yet, even though we know that the bursts came from a far away dwarf galaxy. Which leads us to the next problem: What or who ever might have caused the signal; scientists stated that the signal could have travelled for about 3 billion years (https://www.cnet.com/news/frb-121102-fast-radio-bursts-aliens-seti-meti-galaxy/). That means, if it were aliens, then we would see them flying through their galaxy 3 billion years ago. In the meantime—unless their spacecraft is really, really slow—they would have likely moved on to a different part of the universe.

Why would aliens use that sort of power?

The idea of powering your spacecraft with radio emission isn’t so bad, but it might not be as easy as it sounds. First, you’d need a transmitter big enough to power your probably huge (and heavy) spacecraft even if you’re far away from the transmitter. That would suggest that you’d have to build a gigantic transmitter; some scientists even suggest it would have to be about the size of the earth. I mean, this might be less harmful to your planet’s environment than using fossil fuel, but then you would need just a lot of energy. I’d suggest that such a device might be built by a civilisation that doesn’t have a home planet any longer, so they have to build a transmitter in space. Maybe they built a transmitter to find a new home planet. To build such a device would mean that the aliens that built it are very, very advanced, way more advanced than our civilisation.

But what if the aliens actually tried to contact us?

Could the signal have been sent by an alien civilisation to contact us? OK, it could be really the attempt of an advanced alien civilisation to contact our planet. But why should they contact us using FRBs? Wouldn’t there be a way that wouldn’t need that much energy and would be easier to be decrypted? It is more likely that the signal actually was caused by a gigantic alien spaceship, or that the aliens didn’t mean to contact us; however, we will have to find out where the signal came from before we can determine whether or not it was aliens. But we should mind that it might also be a neutron star—or, who knows, maybe an astronomic object we still have to find out about.

Sources:
https://www.cfa.harvard.edu/news/2017-09?utm_content=bufferc5af4&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer


https://www.cnet.com/news/frb-121102-fast-radio-bursts-aliens-seti-meti-galaxy/