Is this pic true?
Oh my creator of matrix what a hell are we even hoping for if our radio waves only went so far in our own galaxy?
Also when you imagine that the stars we see in the sky are the stars that are actually only in a small circle around our part of galaxy... jesus fuck
Are we really alone? Is this all there is? Empty lifeless universe that wants to kill you?
/are-we-alone/ thread
>be told by mom and dad and school and tv you are reaaaally special and important
>you arent
woah!
>>8946845
what a pathetic little miserable man you are
>>8946827
>even hoping
We are hoping to hear others first, before they hear our radio signals which most likely are the powerful radar signals emitted during WW2.
>>8946863
what about our cancerous TV?
>>8946863
Those signals weren't directional, which means thay they succumb to the inverse square law. There's no way they're strong enough to be detectable by the time they reach aliums in other solar systems.
>>8946867
Falls to background noise before it reaches even the closest star.
>>8946827
You ask it like there's no other place like earth or with similar circumstances in the vast universe.
>>8946827
>Oh my creator of matrix what a hell are we even hoping for if our radio waves only went so far in our own galaxy?
They likely aren't even detectable beyond the Oort cloud. Inverse Square law applied here.
>>8946827
You should be fucking glad.
Broadcasting our location in space i sbeyond retarded. The chances of alien life being hostile are extremely high. We should't be broadcasting our existence to the universe until the point where we are certain we could potentially defeat most hypothetical hostile alien threats.
>>8946827
Inverse square - aside from SETI, which is targeted, radio waves don't get beyond the solar system (even more so now that we've switched to almost entirely digital formats).
Even SETI is limited to 500ly or so. (Though up to 5,000, theoretically, if you know exactly what you're looking for.)
>>8947603
Human made radio emissions are simply to weak.
>>8947088
>Those signals weren't directional, which means thay they succumb to the inverse square law.
Even directional signals succumb to the inverse square law.
"The Great Silence" is a non-issue.
>>8947603
>i find that hard to believe desu
Let's run through what my 9th grade science teacher taught (you'll learn this when you get to High School).
>invent gun that shoots controlled spay of butter
>shoot a piece of toast from 10', perfectly butter toast
>shoot toast at 20'... results?
At twice the distance, the butter spreads out twice as wide AND twice as high.
You'd need 4 pieces of toast to capture the same butter, not just one.
Double the distance, FOUR times the area covered, one FOURTH the amount of butter per piece of toast.
>>8947605
>Even SETI is limited to 500ly or so.
https://en.wikipedia.org/wiki/Fermi_paradox#Humans_are_not_listening_properly
>SETI estimates, for instance, that with a radio telescope as sensitive as the Arecibo Observatory,
>Earth's television and radio broadcasts would only be detectable at distances up to 0.3 light-years,
>>8947588
Essentially this
>>8947660
Speaking of active SETI - ie. how far we can send directed messages. Not how far away we can receive them from.