Man of Honour
Just like supersonic jets were to early man? Beyond them.
Supersonic is supremely different to defying the laws of physics that are set out in our Universe. Assuming anyone out there has harnessed light speed travel through Space, then it would take 200,000 years to just cross our Milky Way galaxy non stop at light speed. The Milky Way has maybe up to 100 billion solar systems, and then there are other galaxies both bigger and smaller than ours, billions upon billions of them..... How do you think anyone out there is supposed to find Earth life from such distances? The laser light based signals we've been sending out won't escape our galaxy for 200,000 years, and that's assuming the area of sky we have sent them toward has beings on the other end in the first place waiting for a light signal for signs of life.
This all assumes they also have the power to overcome time dilation, which would add even more years onto the journey every time they crossed paths with a supermassive object like a black hole of which there are countless numbers floating around empty space and in the middle of every one of those galaxies powering them.
The numbers are far too great for us to come in contact with space faring beings out there. I'm sure they are out there.... Just the probability of them finding us are so slim it's just not worth thinking about in the grand scheme of things.
It's great being optimistic, but with this topic, once you get your head around the actual numbers involved you can appreciate why we should be more realistic than optimistic.
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