Not sure if this belongs in a science thread or a science fiction thread, but it's science to me. It's the big question about life on other planets. As Neil deGrasse Tyson said, the ingredients of life are unquestionably spread throughout the universe. How many planets could sustain some type of life as we understand it in not yet knowable, but one would assume the number to be quite large given the shear vastness of our known universe. So my initial question is, why with all this life out there have we yet to hear a peep? (Alien conspiracy theorists need not answer. Our government can't build a f'n web page let alone contain such things as visiting life forms from other planets, but I digress.) I'll answer my first question myself with a simple, distance. The shear distance between planets is so immense one cannot use anything but imagination how we would communicate, let alone travel. My real question is, why all that distance between us and them? I have ideas, but I'll wait on some of you big thinkers before I share them. Just curious. Well, very curious about such things at this stage of my life.
The search for extra terrestrial life is science. Why we have not been contacted is fascinating. You might want to read Are We Being Watched?: The Search for Life in the Cosmos [Hardcover] Paul Murdin (Author) http://www.amazon.com/Are-We-Being-...84961367&sr=8-1&keywords=Are+we+being+watched
http://www.businessinsider.com/evid...-system-found-at-the-icecube-detector-2013-11 http://discovermagazine.com/2013/dec/09-do-we-live-in-the-matrix#.UpDh4MTrzIz
Quantizing gravity, and why it is difficult by Leonard Susskind <iframe width="640" height="360" src="//www.youtube.com/embed/yK4rhkcsQDc?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>
<iframe width="640" height="390" src="//www.youtube.com/embed/tofbMx8ZTQ4" frameborder="0" allowfullscreen></iframe>
<iframe width="640" height="360" src="//www.youtube.com/embed/7iOJZZFDKpc?feature=player_embedded" frameborder="0" allowfullscreen></iframe> I provided a link to this somewhere else on ET, but i thought I would decouple if from that thread.
I used to believe that P!=NP, but now I am beginning to have doubts: https://www.simonsfoundation.org/quanta/20130917-a-jewel-at-the-heart-of-quantum-physics/