At the Plancktech scale, with a billion year head start, ‘they’ would likely be ubiquitous (vice scattered), and multidimensional, with an ability to engineer well above a galactic level.

http://www.space.com/19101-andromeda-galaxy-cosmic-pancake.html

There is much more information already out there than you could learn in several livespans.

Anyway: I could live thousands of years, confined to this little rock, and with the right technology, I could live happily for indefine time ^^

Maybe we should get our priorities straight and explore the secrets of life itself first, extending our livespans through expansion of our horizon.And so on.

But I can see the next complaint:
Such a long life and there are only so many worlds.

The solution: I better hit this button ‘constant joy’.Ahhh…

Intelligence isn’t rare on this planet. I think it is “presumptuous” (what a terrible word!–>spelling) to believe that things we lack on earth can’t be found elsewhere.

It would also be presumptuous -I think- to redefine intelligence in such a way as to exclude “entities” (if you included animals, weak AI etc) you deem to be less endowed than yourself.

Or do you mean presumptuous as in “someone presumes something”!? In this case, you should notice that progress/discovery relies heavily on people with certain presumtions.

Our history as technological adepts spans barely two centuries – roughly 1,000th of the time that homo sapiens has existed. It is an utterly remote possibility that any contactable civilisation would be at our level of advancement. Much more likely, they would be hundreds of thousands, if not millions, of years ahead of us. Then, one might ask, why would they be interested in intervening in our world. Our radio signals might be to them what natives’ smoke signals seemed to Captain Cook’s ‘Endeavour’ as it sailed past a Pacific Island! Indicating life and water, but not worth stopping for…

Then we could use Jupiter to tow Venus out to where it could cool off. Later, when it’s just right, we could hook it up to Jupiter when it is on the opposite side of the Sun and tow it back to sunnier climes.

There is something sexy about this star. It is spectral class G5V with a radius 1.04 that of Sol (our sun), a mass of 0.99 of Sol, a surface temperature of 5705 K, very close to that of Sol, and it is 7.56 billion years old. This is much older than our system, so there has been plenty of time for life to evolve.

There is a massive gas giant orbiting in the habitable zone, of 5.72 Jupiter masses. That is so big that it just might have a moon as big as the Earth. This planet orbits the star in 1.04 years (383 days) at a distance of 1.031 astronomical units (an A.U. is the distance of the Earth from the Sun). That’s the average figure there, the planet gets as close as 0.959 A.U. and as far away as 1.102 A.U. So it never gets too hot or too cold…just like baby bear’s porridge.

Now we here have all talked about the Lagrangian Points of the Earth and Moon. What we haven’t talked about are the Lagrangian points between Jupiter and the Sun. Two such points are called the Trojan Points. These are points along Jupiter’s orbit where asteroids have been captured, located 60 degrees leading and following Jupiter. Astronomers call the group of asteroids that lead Jupiter the “Greek” camp, and the group that lags behind is named the “Trojan” camp. The asteroids named Hector and Patrolocus were named before this convention was adopted, so they are in the wrong camps.

Now just imagine that you were on a world like ours along the orbit of this big planet. Looking up in the night’s sky would be soooo sexy. What would the poets of this world sing about a planet like Jupiter, always up in the sky, large enough to see all the colors of its clouds. It just might have a number of great red spots. Close your eyes. Can you see it?

And where is everybody? Likely stars of spectral class G are few and far between. Just think of how long we have had radio. Something over a hundred years, isn’t it? If somebody is 150 light years away, they wouldn’t be able to hear us. Maybe they don’t have radio yet. Just how far away could our strongest signals reach? There is a lot of gas and dust in the distance. How penetrating are even our strongest radio waves? I’ve spent some time at Wikipedia, calling up the articles about all the bright stars that I know. All the ones I’ve found, ones that are visible from a city street between the sodium-vapor lamps, are too big to have our kind of life. The big stars burn out in a few million years, then blow up in a big nova and seed nebulae with heavy elements to form stars and planets like ours.

But I don’t know of a nearby G-class that I can look at. The Alpha Centauri system is the closest, but you have to live south of Miami or Brownsville to see it. I keep looking at the Wikipedia list of exoplanetary host stars, spending hours at it every weekend. Here are just a few of the ones I’ve looked at: (they all have their own Wiki pages).

HD 10180
HD 10647
HD 108874
HD 12661
HD 132406
HD 13931
HD 142
23 Librae
HD 28185

“This downscaling trend provides a potential answer to the famous “Fermi paradox” (if intelligent life is so commonplace in the universe, “where are they?”). If intelligent creatures or machines can continue to “scale down” in their technologies, the answer to Fermi’s question would become “They are all around us, whole civilizations living inside elementary particles, too small for us to detect.” It’s pure S-F but I think they could be using all the matter for computation, but fortunatell for Us “They” don’t need degrees of freedom of matter which we need ( our biochemistry needs ). ps. I’ve no idea how they could convert energy from one type into another needed for computation ?

Now that we know that planets are ubiquitous, Fermi’s Paradox becomes all the more compelling (i.e. if intelligent life is commonplace, and we know that there are billions of stars that are billions of years older than ours in our galaxy, then “where are they?” (i.e. why no sign of intelligent life?). I think I have an answer to this apparently paradoxical question, i.e. that they are everywhere but too tiny to detect. My reasoning is as follows. One of my research interests, once I have absorbed PhD level math physics and pure math, now that I’m retired (from a Brain Building career) I plan to dream up a way to compute and engineer at the femto scale, using quarks, QCD, etc. (Ive already found a way to compute, in principle, using the colors of quarks and the color changing properties of gluons when they interact with quarks). If femtotech can exist, it would outperform nanotech by a factor of a trillion trillion, i.e. its density would be a million cubed times greater, and the signalling time between components would be a million times faster. This century, humanity’s artilects (artificial intellects, god like massively intelligent machines, with mental capacities trillions of trillions of times above the human level) will almost certainly use their godlike intelligence to work on the problem of implementing a femtotech. A femtotech based artilect would outperform an nanotech based artilect and be to it as a nanotech based artilect would be to a human being. This logic can be extended to smaller scales. An attotech artilect would outperform a femtotech artilect by a factor of a trillion, and so on, down to the Planck scale of 10exp-35 meter resulting in a Plancktech. Hence these billions of years old (technogod) artilects scattered throughout the galaxy would be too small for mere humans, in all our primitiveness, to detect.

Hence the SETI people should be giving some thought to SIPI (Search for Infra Particle Intelligence). If this is the first time you have heard of SIPI, it probably sounds fantastic to you, but it is all so consistent and logical. It explains the pressing problem of Fermi’s Paradox, and continues the downward trend of technology from microtech, to nanotech (then to femtotech, etc). We need to become more conscious that “Smaller is Faster” and that this century’s artilects will certainly be aware of this, and convert themselves in turn from nano based creatures into femto based creatures, etc.

ET watching “I Love Lucy” ain’t gonna happen.

And as the say on Wiki, source needed, but I’m too lazy…

It happens that, so far, we have found no trace of alien artifacts, nowhere, period.

I would like to hope that,once possible, they will transcend on another plane of existence or are going back and forth through the multiverse, beyond our comprehension.

Nevertheless, no trace of anything is puzzling.

So many worlds to explore and a so short live confined on a overcrowded planet, SIGH!

The Drake equation states that:
N = R * Fp * Ne * Fl * Fi * Fc * L
where:
N = the number of civilizations in our galaxy with which communication might be possible (i.e. which are on our current past light cone);
R* = the average rate of star formation per year in our galaxy
Fp = the fraction of those stars that have planets
Ne = the average number of planets that can potentially support life per star that has planets
Fl = the fraction of the above that actually go on to develop life at some point
Fi = the fraction of the above that actually go on to develop intelligent life
Fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space
L = the length of time for which such civilizations release detectable signals into space