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originally posted by: BlackProject
The assumption, if advanced life existed, it would have made itself known.
originally posted by: enlightenedservant
originally posted by: BlackProject
The assumption, if advanced life existed, it would have made itself known.
The amazing thing is that advanced life could be trying to make itself known to us right now. But I think humans simply lack the technology to notice it. On top of that, we assume that our limitations also affect them. Here's what I mean:
1. Visible light. The vast majority of light isn't visible to humans (radio waves, microwaves, UV rays, infrared, etc). So for all we know, they could be projecting complex holograms to us in complex mixtures of these and we'd literally never see them. Ironically, many animals can detect UV rays so they'd be able to see some things that we couldn't.
2. Sound. Sound is just vibrations & it's pitch is measured in Hertz (a Hertz is one wave per second). Human ears can generally only detect vibrations/sounds between 20Hz and 20,000 Hz. By comparison, elephant communications can include sounds as low as 5 Hz while bats and dolphins can hear up to 100,000 Hz. In other words, advanced civilizations could be blasting entire songs, speeches, or diatribes at us right now.
3. Size & camouflage. Humans are surrounded by lifeforms all the time and we don't notice them. I'm not just talking about microbes and insects either. Even larger animals like snakes, lizards, mice, and birds can be near us without most humans noticing. This is because we tend to ignore small and "irrelevant" things. So I think that a truly advanced civilization would master basic camouflage/stealth and nanotechnology, meaning we probably wouldn't notice their pebble-sized space probes even if they were in our driveways. They may not even mean to camouflage them, just as most animals don't intentionally camouflage themselves.
4. Speed. What if lifeforms on other planets exist at vastly different speeds than us? I mean drastic differences, like each one living for 1 million Earth years and saying one word in their language takes 10 Earth years. Or an entire "lifetime" for them lasts less than a few Earth hours. Even if they showered us with communications, it might take us a few millenia for us to receive a full message from them (or only a few milliseconds). Is our technology even set up for such scenarios? This leads me to #5.
5. Technology. We're such noobs when it comes to technology that I think it's actually pretty arrogant (almost even insolent) for us to ask why they haven't contacted us yet. 100 years ago, we still had soldiers on horseback. We can all acknowledge the "amazing" progress we've made in just 100 years, right? Well imagine us in another 1,000 years if we don't have a major system reset. Everything we think is "advanced" now will seem as "advanced" as learning to use flint to make fires.
In other words, advanced civilizations could be showering us with their versions of wireless technology that use particles and waves that we don't even know can be used for those purposes. Their technology could be so advanced that it would be like earthworms stumbling across a DVD player. Would they even recognize the DVD player as a tool, much less understand its intended use? Because that's how I see us "understanding" their attempts to contact us.