LEX - NASA has already made the updated calculations and came up with 36 in the Milky-way, but the Drakes equation is NOT COMPLETE! . We have to add the likely hood of panspermia via meteors or ET, and of a civilization to colonize its GALAXY. We also have to ad all the habitable moons and planets not discovered yet in our 4000 exo planet sample and the AI tecno civilizations not needing a habitable planet, moon or anything organic. This will increase the  probability of life's abundance by many orders of magnitude.<br>I think there is no Fermi Paradox and the guesswork assumptions in the Drakes equation are wrong.  we cant assume that all the nitty gritty details in conditions and scenarios, that caused intelligens here is required to be identical elsewhere out there. life is opportunistic and flexible and will get the best out of any situation. Also before the most heavy element beyond iron was available after second generation supernovas.<br><br>With the latest super computer simulations on the updated Drakes equation NASA claims there must be 36 tech civilisations i our galaxy right now or extrapolated 72 trillion in the observable universe - por 720 million trillion civilizations through the last 5 billion year if their average lifespan is 500 years. That's a conservative estimate assuming no pan spermia - help from ETs or comets/meteors to seed life on habitable worlds. But that's a very big assumption.<br><br>WE still don't know how the very first life in the universe formed via the incredible unlikely abiogenesis of complex molecules and information. <br><br>But once here - due to life's resilience, universal and instinctual urge to migrate in order to survive, Intelligent life must be very common and often be quite similar within one galaxy due to common roots/ancestry from the first civilisations that had luck migrating and colonizing the galaxy.<br><br>The first civilisation that avoids self destruction before it become multiplanetary will likely survive for millions og years and eventually master interstellar travel. The first such survivor/winner to develop electro gravitics, warp drives or what ever alien saucer tech we see in our skies, use worm holes or inter dimensional travel - takes all. They will seed life on, or inhabit themselves multiple habitable worlds, thus eliminating the need for the unlikely and problematik abiogenesis for life to arise and thrive on a high percentage of Earth like or even not Earth like worlds.<br><br>No lifeforms has ever respected boundaries and will through time overcome any - including the space boundaries. If in our galaxy 7 billion years ago or so two civilisations made a competition about who could seed life on the most habitable planets and moons, then abiogenesis with it ultra slow evolution, would be the rare exception for life and civilisations to arrive and we are in for some big surprises.<br><br>The winner take all may very well also be why the aliens observed, look surprisingly similar to us.<br><br>The reason we have not detected/decoded their communication yet, is in part because of until recently scanning in the narrow hydrogen frequency in our very closest neighborhood. With 36 civilizations in our galaxy, there will be average 10.000 light years between - much further than a tech signal will reach even if pointed our way. It might also be because highly evolved civilisations must be highly energy efficient not to ruin ecology - using low energy and quantum encoded communication locally in part to protect themselves from hostile aliens like us. Our radio telescopes are not sensitive enough to detect such weak signals drowning in noise from the host star, and our computers not powerful enough to crack them. They might also have quarantined us as savage cave men with nuke cups, with what ever technology they may have available for that, and finally they might exclusively use instant quantum entanglement communication or telepathy which so far we cant measure.<br><br>My theory: Could it be that:<br><br>1. Genetically close to us related aliens originally evolved here<br><br>2. It could have been a closely related homo Erectus ancestor like Australophitecus or another hominid.<br><br>3. which then was abducted/brought by any other space faring alien species to another planet.<br><br>4. There they changed appearance and physiology in adaptation to that planet.<br><br>5. In the mean time their ancestors here on earth died out.<br><br>6. There they evolved over a million years or so to become space faring themselves - faster than us because they were genetically enhanced and helped by their abductees. The recent discovery of the Pandora viruses in the upper atmosphere with little in common with terrestrial DNA indicate that the DNA code is universal.<br><br>7. They now have an existential problem at home<br><br>8. So in recent millennia they have therefore returned to Earth<br><br>9. Abducted us and genetically modified mostly them but also enhanced us a little through a hybridization program so that:<br><br>10. They can eventually breed with us naturally and regain a foothold here in their old home?<br><br>That could well be beneficial for for both of us.<br><br>The first UFOs for decades showed up a few month after The Manhattan Projects discovery of plutonium needed for nukes feb 25 1941. On april 12 1941 the first one supposedly crashed at Cape Girardiau. Ever since they paid up to 200 visits to our nuclear weapons and facilities.<br><br>This my theory can explain the aliens interest in us, their worries about our nukes and environmental destruction, the abduction phenomena and maybe why we evolved so fast and the rhesus negative blood type.<br><br>Most scientist claim there is no trace of alien DNA in our supposed unbroken lineage and genome. But the question is if a gradual minor genetic enhancement by our hominid forfarther (now alien) sharing much of our DNA would be detectable?<br><br>My theory also eliminates the need for problematic time travel back from our future to explain their human like appearance.<br><br>It indicates they are worried about our safety or us destroying Earth, which they might want to inherit after we screw up.<br><br>To avoid the later, would it not make sense to not waste more time fighting over whether they exist or not, when the real question should be how to establish open contact, mutually beneficial cooperation and hopefully get the knowledge, experience, tech and wisdom needed to save humanity and our biosphere from serious damage and extinction?<br><br>Evidence on youtube, that the benevolent aliens are worried about our safety, justifying my belief, that we might be able to get their help, if we disclose and grow up. (the only reason I am on Quora) :<br><br>NUCLEAR MISSILES. Aliens have constant or frequent surveillance of them:<br><br>Robert Hastings is an expert on this and wrote UFOs and Nukes.<br><br>UFO The Roswell crash. Startling new evidence. (Full length video TV ep) 2002. The aliens were undoubtedly surveying the nearby first and only nuclear delivery squadron on Earth at the time. A letter hold by Jessie Marcel in the photo of the weather balloon reveals the truth, that it was a DISK with VICTIMS and not the balloon.<br><br>UFO shoot down dummy nuclear missile. Vandenburg airforce base 1964 Video taken with 4 meter military ICBM tracking telescope of a flying saucer shooting 4 times with laser like beam on test warhead in upper atmosphere while moving 11.000 miles/hour. MOST CONVINCING UN-FAKABLE FOOTAGE/TESTIMONY COMBINATION.<br><br>Military Witnesses of UFOs at nuclear Sites (Press Conference 2010) by....Former Canadian minister of defence Paul Helyer. Most convincing testimony from highest authority. (If personnel at your nuclear ICBM installation are unreliable witnesses and liars or hallucinating, then these people SHOULD NOT BE IN CHARGE OF YOUR NUKES)<br><br>Alien disarmament of all 18 nuclear missiles at Malmstrom Airforce Base Montana 1967.<br><br>Alien activation and deactivation of Crimean nuclear missiles in 1992.<br><br>Alien visitation of British nuclear missile installation in Rendelsham Forest in 1980. Best documented nuke visit.<br><br>The Bentwater Incident: Security officer Larry Warren<br><br>The Nimitz Encounters (alien submarine and its satelite ufo's documented by US navy officers November 14 2004 and 2015) Nimitz carries nuclear weapons.<br><br>Glowing sphere over the J.F. k. battleship Arkansas with nuclear weapons onboard in june 1971. Mr James Kopf. US Navy National Security Agency.<br><br>UFO over USS Roosevelt nuclear aircraft carrier in 1962. Harry Allan Jordan testimony.<br><br>Iran has been concerned about spherical UFOs observed near nuclear power facilities (plutonium enrichment facilities)<br><br>Ufos observed near plutonium enrichment facilities in W.DC in 1945<br><br>Red glow in a clear sky - Robert Blazina pilot flying with nuclear weapons in 1952 and 1977. Same pilot - two encounters.<br><br>At nuclear bomb testings in the Pacific in the early 60s large numbers of ufos and USOs were seen - more often than not. They disappeared just before detonation. One huge ufo was damages by detonation and sunk in dec 62<br><br>Nellis nuclear Air force Base Nevada 1994 - shape shifting UFO filmed and witnessed by personnel. Same ufo seen over Mexico City. 2010 - 3 UFOs and missing time for personnel and mutilated donkeys with no blood on the ground. 6 month later two intruder was tracked with infrared vision, but vanished when within 100 meter.