Cosmology is progressing at an astronomical pace 😀✨ science videos date so rapidly, I wish they all had a date of origin not a date of posting on utube

Someone once said: " Have you ever noticed that in the search for intelligent life in the Universe, all the equipment is pointing away from the earth!"

"We understand nearly everything that there is to know about the way the universe was born and continues to evolve". Except we don´t know what 80% of the matter and 70% of what the energy in the universe are (dark matter and dark energy) and we can´t reconcile quantum physics with relativity, the two main theories that comprise the foundation of physics and cosmology. We know next to nothing about the universe.

We have been emitting powerful electromagnetic waves since 1936, the year the first television broadcasts started with the Berlin Olympic Games. Meaning our earliest TV broadcasts are reaching, now in 2020, a distance of 84 light-years away from the Earth. But I think we basically forget that the energy of those signals also decrease proportionally to the square of that distance. So, I think it's probably very difficult that any civilization at a distance of 84 light-years from us could even detect any of our human broadcasts. And I think we're experiencing exactly the same problem when trying to detect electromagnetic signals coming from alien civilizations. It is probably very difficult to capture a strong enough signal. And it's sad, because I'm sure we are NOT alone in the universe.

He said, “We know almost everything there is to know about the way the universe was born and the way that the universe continues to evolve.” I don’t know what universe he could possibly be referring to.

They are already here and have been for millions of years

Anyone else fixated on that light moving around the x?

The very first line he said we know everything about how the universe was created. I say we know nothing.

Wonderful!!

"we understand nearly everything there is to know about how the universe was born and continues to grow." I think not Andrew. Dark matter? dark energy? consciousness? maybe if we stop assuming we know everything,we can find life as we know it.

Dr. Siemion misspoke, I believe. He said we'd been emitting detectable signals for hundreds of years. I think it was just a slip-up, as we've actually only been doing so for - if you really, really stretch - about 150 years. Significantly powerful signals have only been transmitted for about 100 years.

we`ve been sending signals out into the galaxy for hundreds of years? 120 maybe , but definitely not hundreds !

Even if we got a signal, the civilization is probably long gone!

We know ignorance, arrogance, and how to live in denial of the fear of questioning all we think we know. Don't blame the messenger who informs you with questions you fear to ask yourself or honestly begin to answer.

At 11-pm, June 13, 2014, I observed an extraterrestrial technology about 1-mile above me for 3-minutes. Extraterrestrial technology is HERE.

Are alien civilisations within the parameters of our simulated experience?

Did you talk to Lockheed Martin or Bigelow Aerospace?

Good presentation!

Did i just get clickbaited by a tedx video... ?

we realize that the odds are almost zero that we are alone, nor are we the most advanced. we realize that some of them must have been around before we came into existence. we should also realize that there are more reasons "they" shouldn't talk to us than there are reasons FOR them to talk to us, at least in our primitive state. what the bigger mystery is, what do they know and will they eventually share that knowledge with us?

Wow, his first three questions are what everyone should being thinking about.

I need the link to download the software program.

If some high tech civilization is going to die by knowing it they will build a space lighthouse. The lighthouse will send signal as long as the star where it is located shines. The lighthouse should say to all new forms of lives sort of: Hey we were and we've tried to survive. That we should do like a plan B but in fact in parallel.

The answer to the Fermi Paradox.There is a beautiful loving Universe many people claim they experience when they are undergoing an NDE. Long before any Advanced Civilization gains the technology necessary for Interstellar Travel - they find a way to escape to that Universe. In other words, it is technologically easier to get to that other very pleasant and safer place, than it is to develop the Type II Civilization Technology necessary for Interstellar Travel. This explains why we have found no sign of an Advanced Alien Civilization anywhere in our Universe.

Why are we looking for life in space? We still can't live in peace down here.

Have we really been sending signals into space for hundreds of years? 3:56 I thought high powered TV and radio transmitters were around only since the 20th Century?

I bet if you traveled faster then light what you would actually see is the ever stretching separate frames of reality in the form of light signatures which would explain us being "light" beings. And the more faster then light you go the more frames appear and one could possibly then traverse these fractals of time and literally pop up anywhere at any time. The variables to make this possible could theoretically made discovered by sending a probe that can accomplish these speeds and have a quantum entangled transmitter so that way no matter where the probe goes we can still get feedback and even possibly video feed.

I believe the universe is full of intelligence life but they don't last long. Time and distance work against us finding a signal for us and a signal to be at the same place and the same time is next to impossible.

The guy who thought a moving glow around the "X" is a good idea deserves a kick in the face...

Note to self: don’t go to the comments of a ted talk video

We already have the tech for interstellar travel. Just CRISPR into the space travelers the genes from that arctic frog that survives freezing. The Froggienauts!

I would love an update to this video.

He is not considering the Law of Accelerating Returns...

Advanced civilizations may have discovered the ability to travel close to the speed of light by creating and manipulating gravitation fields. If so then travelling to the stars (in person or by drone) would take close to the same amount of time as sending a radio signal message to the stars. Thus making radio wave communication a bit redundant.

Who says everyone is using old fashion Radio Waves? Are we even going to be using Radio Waves 500 years from now? And not a Technology that is faster?

I have watched a lot of these & if there is one thing in the whole Universe that we can be sure of, it's that the sound changes, when the car goes by.

It is self-evident that life is all over the galaxies in the universe. Why waste time wondering? Get ready for it to reveal itself.

Back in the 60s the SETI program built the ARECIBO OBSERVATORY in Puerto Rico! This is still today the largest RADIO TELESCOPE in the world! It is located in a valley surrounded by mountains! It is still operable yet NASA, the federal government and the universities that funded the project has chosen to abandon the idea because better Radio Telescopes are now located in Virginia, Autralia and the west coast of the U.S.

One other thing about advaced civilizations is that they use different technologies as they change in their level of advancement. As an example, today we commonly use microwave signals to communicate, and 100 years ago the radio signals were 100KHZ or less that were used for communications. Those ground signals don't usually get off of the planet, and the key thing I'm getting at is it would be even shorter than a civilization that it would be sending out signals that we could see with our radio equipment. There are other civilizations out there, yet we are only thinking of using technologies that are not too likely that other civilizations would currently be using. One such thing is the communications technologies that are still beyond what we are currently capable of using. Such as what is called dark energy, of other things that are not limited by the speed of light.

Obviously we are the first planet to invent radio waves to transmit audio and video etc. Very soon, with a decent antenna we should be able to catch an Aliens TV channel. I for one can't wait to tube into the drama of inter galactic soap operas.

And so it begins..........🚀🚀

Asking the question is always interesting and the answer is always the same... we have no answer. Even so, the search and speculation is worth while, I think.

Fascinating concept. I just don't see how we can possibly calculate how long an extraterrestrial civilization would exist when we don't even know for sure how long we've been here. Thanks to the lifetime of lies we've all endured, I doubt we'll ever truly know.

To build an ufo we need to program reallity, we need to program it into our reality. How to write codes we are coded with. What tools do we need to write our own reallity code?

I've been using Seti@Home for years. I've always wondered if my computers ever processed a legit signal.

TO SERVE MAN !!!!!!

When I was about 13, so this was about the year 2000, me, a friend of mine and my sister was walking down the road, it was late in the evening and sun was down, there was some sort of aircraft, I remember it looking like an HK from The Terminator, but my sister says she remembers it was triangular shaped, flew down from the sky above us, it flew down hovered over us above the treeline, the engines hummed very quiet and they did not blow the trees around, it had a light shining down on us and there was someone speaking over a loudspeaker saying something I don't remember understanding a single word that it said, it was a language foreign to me, but it glided over top of us for a few seconds, and then it flew back up towards the sky and disappeared

The one thing we haven't understand is 'ourselves'

We are not alone.

Outline of a SETI speech related to possible alien inteligence when at TED's - Are we alone in the universe ? - Expensive telescopes around the world - SETI at home - Drake's equation - Distance - Thank you So it's a way of crowdfunding I think. I've seen four of these speeches and they're almost exactly the same. Clickbait.

The only way to traverse that immense a distance would be to create a wormhole which instantly transmits a person from Earth (point A) to the desired location (point B), thus folding space-time together like a sheet of paper...

Why do we assume that they will use radio signals for communication? Shouldn't we be considering other forms of communication as well?

Crop Circles -- they already talk to us.

I like the idea of Seti@Home, but I don't like the notion of my computer downloading data while I'm up getting coffee.

Wow, almost nothing he said has any weight. After just a few very short number of years we are already switching to HD broadcasts, which have a much, much shorter range, making it almost impossible for anyone to pick us up.

Yes we can. We just need a change in our government system and our priorities. What do we trutly need and want as a human species, set a major goal with some minor (but not least) goals. Acomplish them no matter what. And live on to hopefully reincarnate into a human and be able to see how great intelligent and advanced we've become.

Life is rare, intelligent life is rarer. There is no other intelligent life in our galaxy, we are it.

We are not alone I assure you

Everyone knows: 1. They use subspace radio, and 2. They only show up after we develop warp drive.

Timing. It has always been about timing when attempting to detect a signal. But no-one ever discusses the factor of an advanced civilization that no longer uses the signal we are trying to detect. Our planet is 4.5B years old. We've only been around (technologically) for several centuries. An advanced civilization may be only 10 light years out but stopped using the signal we are trying to detect, millions of years ago.

EVERYONE! Download SETI@home and start helping crunch those numbers! :)

"We understand nearly everything there is to know about the way the universe was Born" ...ok, what is the 82% of the universe we called Dark Matter and where did it come from?

It think this may also turn out to be nonsense. Advanced et's will almost certainly use quantum entanglement for comms/tech .

The aliens are too busy being immortal gods. They are literally located beyond the singularity. That's why we never found them.

We haven't been sending signals out for 100's of years at all

His body language and hands say "Stop, stop, stop, stop, stop....."

4:14 laser tech we don’t use this here on our planet? Question have now popped in my brain!

Unfortunately advanced civilizations would either use 1.) Encrypted communications that would be difficult to distinquish from background noise 2.) Quantum teleportation of information which would be impossible to intercept.

If we detect a signal what will we say in return. Or is all this effort so that we can make sure we dominate anyone we find?

this is not a ted talk, this is an ad

Side question. Why is background radiation still visible to us? Wouldn’t it be a donut like the waves he talks about here coming from a planet? If it were a donut it would have a hole that is essentially the size of the expanding universe right? So how are measuring the background radiation?

How about focusing on the skies right above us? Seems like that’s a pretty big deal in 2021.

trying to find aliens by radio signals is like trying to find grass in the sky.

Or being destroyed by a predatory intelligence from another world. Look at life on earth, many predators in nature. I hope something bad doesn't find us through this process. Just a thought.

The Source has many layers to it, we are but one. Other life forms may not necessarily be ‘out there’. They are right here, but humans cannot experience them.

Life is intellicence.

We are alone according to our behavior, the others knows and stay away from us now.

Has anyone else thought of this? The time part of spacetime is thought by some to permit time travel (which I don't think is possible). However, if ghosts, shadow and grey aliens wanted a place to hide so that they could sneak up on you and scare the bejesus out of you (which happened to me last night), there might be a place in spacetime where they could hide. It's sort of the future or past, but not causally. Consider this. There exists a wave front with a radius of 30mm, that is one nanosecond in the future that is converging to a point, at the speed of light. It is a wave function that can have any and all of the quantum mechanics properties available to store energy states. Likewise, there is a wavefront that is leaving the point and traveling into the "past", possibly with encoded information about events that happened. We know that the universe is expanding at the speed of light. If some object, like a light source or even a machine could travel along this "time dimension", it wouldn't be able to alter the past or see the future with much accuracy (necessarily), but could it get around some of the limitations of inertia? Could it act like a UFO and travel through the sky without creating sonic booms? Are physicists even allowed to talk about this?

It's not about life elsewhere, it's about control of you and your computer, think about it.

Precisely

If another planet in our galaxy is indeed transmitting radio waves, surely it would not be hard to find?? Would it??

4:00 - "Hundreds" of years? Plural? I'd say about a hundred years. It's a bit more, but it's closer to 100 than 200. We haven't quite made it to "hundreds" yet.

I wonder why modern astronomers keep quoting the Drake Equation ? Since Drake's time, we have discovered that most stars have a solar system, that life formed on Earth amazingly soon after it's formation etc. Surely it's time to update Drake's Equation ?

Of how long would they use radio signals

The premise is not necessarily correct. We ourselves are moving to a wired world where electromagnetic emissions in all directions are getting less frequent. I myself haven't tuned in to any over-the-air broadcast almost all year... Another alternative is the galaxy is a Dark Forrest and civilizations that survive don't stupidly announce their presence to all and sundry....

You got all of the technology and we can't get a decent picture from ufo in our planet. Makes me think 🤔

❤️

Why are we assuming they're using RF for their communication? It's only light speed.

Someone wise once said that the more you know, the more you realize that you don't know. So what do you think you know?

Reaching

Why is this video so short only about 14 minutes is this just a small segment of a longer presentation ?

And the answer is "YES WE CAN!"

How it was formed from a prospective born but how far behind it’s existence leading to the birth and beyond

I know of no communication that travels faster than light. How fast does thought travel from one point to another? Can it be measured?

Phenomenon that are limited to the speed of light aren't likely places to find alien communication, in my opinion. They would be so advanced and we know that there are things like entanglement and higher dimensions. To effectively communicate as a galactic species you would need something better than light speed.

So it's been 3 1/2 years. How's it going?

I sure hope we manage to find intelligence out there, cause there's bugger all down here on Earth.

Berkley is on the 37th parallel. Coincidence? I think not!

Question: 3:49 Are you sure we should emit signals into space? If it really true that some intelligent life exists beyond our galaxy (and has advance technology) was to find us, wouldn't we be in dangers? Don't mind me. Just a saying.

ET's have been on this planet and observing us in peace for Thousands, if not hundreds of thousands of years.