I have a feelings that species who aren't originated from earth have developed their own technology to cause their undiscovered planet to stay invisible and not viewable from humans.

http://i.qkme.me/3q003d.jpg

TheHuskyK9 said:
What if mirrors are portals through another world?

Portals (or Portal Gun if that exists in real life) will become a common way for criminals to escape the prison or escape from the cops.

interesting theory but thus far such thoughts are just that, theories.

until space exploration actually makes some decent headway in regards to planetary colonization and maybe terraforming related tech (you know, stuff that'd be quite likely to get somethings attention at some point). i doubt theres much we can do aside from theorize as to what may or may not be out there.

you'd probably find it silly or maybe ridiculous but i rather like to think of what is seen and shown in video games to be other potential worlds yet to be discovered or alternate timelines (such as the mega man games. "what if" we had gone down that route of tech instead of where we are now?). theres really no way to be 100% certain if such things exist somewhere in time and space or if those alternate paths could have really happened had things been different.

it's just endless potentialities and what if's.

who knows, maybe OUR universe as we know it is a hyper advanced video game (mmorpg?) as shown in the video game, Star Ocean:Till the end of time for ps2. theres simply no way for us to know for certain if the answer is yes or no. at least, not yet.

and making baseless assumptions gets us nowhere in the long run. maybe those "monsters" and other races seen in those other "game" worlds are real and exist...somewhere, maybe not.

edit: i certainly don't think we humans are the ONLY sentient life in existence but as i said, we just can't say for certain either way.

What if everywhere you aren't looking right now is filled with densely-packed Hitlers?

There's bound to be sentient alien life out there.

I just hope I live long enough to see it.

Well as long as we can figure out how to do that thing where you fold space to move faster than light WITHOUT fucking everything up inside a ship going that quickly we'll find out

TheHuskyK9 said:
http://i.qkme.me/3q003d.jpg

dead serious i thought i was the only one whose considered this

Why would they need to? It wouldn't affect anything if we could see them, so why bother?
And we probably couldn't tell if they were up to anything anyway, unless they were inside the solar system already.

Or blowing up stars or something.

Kardashev type II civilization could be out there, somewhere, practically invisible.

could probably build a self aware robot already. if not reploid lvl of tech then something close to it, just need a sufficiently advanced AI mainly. of course, then all we'd have to worry about is if it turns on us OR we go full stupid, freak out and give it a reason to turn against us.

actually, that reminds me of a movie i saw not long ago. i forgot the name of it but this guy (a human) was uploaded into a computer system for some reason and he pretty much eradicated pollution, purifying the air, water, and effectively reversing ALL damage humans had done to the planet thus far by means of nanotech. but what happened? well, for doing all that and i think trying to improve on our fragile bodies and flaws...

oh no, a machine is trying to help and improve us, whatever shall we do? oh, wait, i know. we bring in artillery and start blasting it. next we inject a woman with nanites containing a computer virus, let her get caught in the cross-fire. the computer/man heals her thus infecting and killing himself with the virus.

yeah, theres gratitude for you. in exchange for clearing up so many problems in like, a single day, we give him death.

Eh...chances are slim...sorry.

I heard scientist are researching and developing a technology small device called Nano Bots (Nanorobotics) that identify and destroy cancer cells inside human body.

Burgerpants said:

I heard scientist are researching and developing a technology small device called Nano Bots (Nanorobotics) that identify and destroy cancer cells inside human body.

those would be nanites, a part of nanotechnology.

Aeon18King said:
Eh...chances are slim...sorry.

you know this how?

ayy lmao

If there are many planets with life, some of them won't hide.

Hiding doesn't matter since it is better than being annihilated by them.

They're probably hiding from us because they don't want to be associated with our barbaric-primitive bullshit.

Guys... Gentoo...

treos said:
you know this how?

Here's some video for you if you want to learn more about the views of a professional in this type of subject. You also have to consider:

How fast and long it takes to move in space.
What's in space.
What they need to survive.
How brobdingnagian space really is.
The way Earth was built and how it obtained life, then consider if nearby systems might have the functionality to support a planet like Earth.
The tools they need to get around the asteroid belt.
And Much Much Much More that I can't think of on the top of my head right now.

But do you know this how then? Do share. :)

I yearn for most topics of science, especially in biology. :o

It's so fun. x)

ShylokVakarian said:
Guys... Gentoo...

Lol that is ugly... xD

ShylokVakarian said:
Guys... Gentoo...

is that where they got the idea for meg and lois' head shape? (family guy) or did they use someones dick as a model?

aurel said:

@wous ...You just HAD to pick one of the most visible civilization types to call invisible.

I don't understand. Why would a civilization of that type have to be one of the most visible?

aurel said:
I dont understand. Why would a civilization of that type have to be invisible? Type 2 is quite high on a list of?... 3.

Also, that scale is energy based, if the civilization gets
"with energy consumption at ≈4×1033 erg/sec."
(da faq is that erg/sec?)
It will emit the same amount out as waste.
The higher the number on that scale, the more it glows in low (and at times, very high) energy radiation.
Type 2 would be visible half way across the galaxy.

I didn't mean that such a civilization had to be invisible, but that one could be to us as observed from on or near Earth. A civilization within type II may have the means to completely envelope a star within a manufactured structure. I don't think it would be strange at all that a hypothetical civilization with that sort of capability would have some measure of control over where waste energy radiates to. That comes before even all of the of things that could completely occlude even so large an object.

Measures of erg/sec are just alternative representations of power. Maybe Karadashev thought watts had cooties.

aurel said:
"with energy consumption at ≈4×1033 erg/sec."
(da faq is that erg/sec?)

1 erg = 10^-7 J, so that would be 4×10^26 W

It will emit the same amount out as waste.
The higher the number on that scale, the more it glows in low (and at times, very high) energy radiation.
Type 2 would be visible half way across the galaxy.

Not necessarily. Type II civilizations are capable of harnessing the entire energy output of their star. The easiest way to get there would be a Dyson shell. A solid shell of matter around the star, with solar energy collectors on the inside, radiating waste heat into space would show up from a distance as a star radiating almost entirely in the infrared (exact temperature depends on the radius). It would be weird, but unless you knew what you were looking for it wouldn't be obvious.

I think any Dyson spheres would be built around red dwarf stars. They are the most stable and have the longest life. Not to mention the sphere would be much smaller. The result would probably render the star invisible to us. However, their electronic signature leading up to that would still reach us.

@auerl
I didn't say anyone would want to build one, simply where I thought one would be built.

aurel said:
@edidaf
Infraaareeed
.
No, wtf with all these red dwarf dyson spheres?

age argument: it is going to fucking break. And why would anyone want it to last for a long time?
"It is going to be a bitch to build, but its okay, we will need it after... 5 trillion years :D .. plz fund"
Everybody is sure it will last 5 trillion years? okay.
---
The size argument:
no, doesnt matter, the system itself wont have that much stuff. You will still have to bring it from other systems.
And if you go that far, why not just put a huge plate on a normal star? It may well end up the same size, you will have to carry less stuff, and it may well be in your home system, with your homeworld (yaay)
---
Why would a civilization want a dyson sphere anyway?

Technology has a tendency to... advance.

It's an unthinkable feat today, but so was landing on the moon 100 years ago.

aurel said:
@Burgerpants ... and you believed it?
...pffff lol

I'm a conspiracy theorist.

AYY LMAO
Y
Y

L
M
A
O

Cactus said:
AYY LMAO
Y
Y

L
M
A
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AYY LMAO
YY
Y  Y

L     L
M      M
A         A
O           O

http://i.imgur.com/AlSAdsg.gif

aurel said:
Why would a civilization want a dyson sphere anyway?

I'm not sure why you'd want a Dyson shell (the material science requirements are insane, you'd be stuck with near-microgravity unless you've got artificial gravity developed (or spin the sphere, in which case the material science requirements go from "insane" to "all of our engineers are gibbering in a corner"), and the whole thing is unstable with respect to the star, so you need active stationkeeping), but a Dyson swarm is a good way to get a shitload of energy (and possibly living space, depending on how you build the satellites) on the cheap. Well, cheap as mega-engineering programs go. And you can get there by natural, incremental expansion, so you can just pay for each bit as you need it.

can the universe be like this (not infinite)
()<-invisible borders of space
( <-you go here . . . and appears here -> )
over and over without escape
much like playing Mario Bros

CG550 said:
much like playing Mario Bros

Pac Man and Mario Bros just got a little more existential

Yes, it could be boundless but finite. It wouldn't actually have borders, though. Rather, it would be wrapped around on itself.

To illustrate, imagine a representation like this:

+-----+
|^   v|
|<   <|
|>   >|
|v   ^|
+-----+

If you went off the left edge, you show up at the right edge going the same direction. If you go off the top or bottom, you turn around and come back going the other direction, at a different horizontal place along the same edge. It turns out that there aren't any actual boundaries here. You'd see behavior like this if you were to plot the motion of something on the Earth on a rectangular map. But if you look at a globe, you can see that there aren't any actual boundaries, just artifacts of looking at it on a rectangle. Space could be like this, but with a 3-dimensional surface of a 4-dimensional ball (a "3-sphere") instead of a 2-dimensional surface of a 3-dimensional ball (a "2-sphere"). There aren't any boundaries, but if you go off in one direction for long enough you'll end up where you started.

Alternately, it could be something like this:

+-----+
|v   ^|
|<   <|
|>   >|
|v   ^|
+-----+

In this case, if you go off one edge, you end up at the opposite edge but going the same direction. It turns out that this also is a map of something that has no boundaries-the surface of a doughnut (a torus). The universe could be like that, too.

The universe could also be infinite and not wrap around, of course.

C'mon, they are already here;
have been for decades ...

and are using an SEP field to hide their existence.

Rowdy Roddy Piper has proven this
(with his sunglasses, nonetheless. If you are too young, lookit up).

R.I.P. RRP