The Real Scale of The Universe😲!(w/Brian Cox)

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[ValkyrieGothic]

I love this guy so much. There is never any ego involved in the things he says. Never any agenda. Just pure, wonder, pure science. I wish we had more like him in the world.

[cazl]

My mind is blown yet again by Prof Cox. 🎉

[Psilocybins]

Hes like a magnet to listen to. I just cant not listen to someone who has this much passion for his trade. Awesome

[abhijeetdey]

And the most crazy part is whatever we are seeing right now probably doesn't even exist anymore.

[conmckfly]

Mind boggling and yet, rather magical.

[Krissss-sb]

The way he puts things in a digestible way that’s easier to understand is amazing, love this guy

[Mellonpopr]

Love seeing more Brian on youtube lately

[ctrguy]

I super appreciate that he talks about science in terms of “theory” & “we think that” opposed to other scientists who are married to their own theories & preach science in absolute terms‼️ 🤙♥️🔭

[danstewart]

*Visualizing the difference between:*
1 million | 1 billion | 1 trillion
• _If $1 were equal to 1 second:_
▪︎ 1 million seconds = 12 days
▪︎ 1 billion seconds = 31 years
▪︎ 1 trillion seconds = 31, 688 years

[TheGreatBurgholio]

Religion, politics, and morality all go out the window when you attempt to grasp just how tiny we are in the grand scale of things.

[travisnealy]

The milky way Galaxy is literally a nanospeck in the grand scale of the known universe mind blown 🎉

[vegasthornton]

I can listen to this guy talk all night

[goncalobaia]

I have a theory for our imperceptibility of the universe's dimension, which is essentially: we see physical space in terms of time required to go through it. We have a good idea of how big the world is because with the means of travel we have, we know how long it takes to go around it (roughly a day by plain).
If we get a little faster traveling, we'll get to rocket speed, and get to Mars in like a year. Do that a little further and it's conceivable that you'll be able to have some idea of the solar system's size, as you'd probably be able to fly it through in your whole lifespan. However, we start to lose any sort of understanding of size when we enter the kinds of distances where you hear scientists say are so-and-so light years away, which can't be reached in a whole human lifespan by any means of travel known to us, and that's when we stop to even be able to conceive how big the universe is. Because our own life will end before we even see the destination just a little closer, therefore it becomes irrelevant to our instincts, and thus, inconceivable.

[kevinloftus]

The possibility that there is not life in the universe far outweighs the chances that there isn't life. In a small slip sliver of the universe there are 2 trilliion galaxies within these galaxies are billions of solar systems each containing various amounts of planets. So the sheer number of planets and just the observable universe is a number so vast I don't think even the brightest mathematicians would be able to grasp

[atheisthuman]

If the universe is infinite, it must have existed always. There cannot be any beginning or end. This also ensures that there is no God or creationist required to explain the Universe's origins.

[joshader]

Sometimes it’s like falling asleep for a quick nap on the bus and realizing you traveled quite far pretty quickly

[julienjames]

The question that always makes me feel so small is trying to understand how did the universe started. Like what was the beginning ? It’s like I can’t comprehend it has to have a beginning in my mind.

[ericmatte]

One thing I would point out is that, as we are sitting here listening to Brian Cox share his insight on the universe, most of us remain unaware of the actual events having occurred on our planet ( beginning from it's earliest origin until now) which led us to this moment of being here today, watching this video. It has been said by someone that we humans are: "The Universe experiencing itself." In Earth's history there have been no less than 5 cataclysmic events leading to mass extinctions which, only narrowly, eliminated nearly all life on our planet. The most recent one, which most all of us already know, being the asteroid that ended the age of the dinosaurs roughly 65 m.y.a. and marked the end of the Jurassic period and in turn made way for mammals and modern life forms to flourish and evolve. All of this then led to the appearance of humans much, much later. Just knowing the culmination and sequence of all these events having occurred (and for us to even exist) seems, to me, extraordinary...much like winning the cosmic lottery. But then, the question is: are we really that unique?? Just how many winning "lottery tickets" can a galaxy (containing some 400 billion stars and countless planets) possibly have? Just one? A million? Maybe more? Who really knows?? None of us. Even if that number were a million inhabitable planets in our galaxy, that would still be a small number in comparison to how many stars (with neighboring planets) are out there. Now, consider this same scenario happening with another earth - like planet elsewhere in our galaxy (or any of the 2+ trillion other galaxies in the visible universe for that matter) that is harboring life. One that has sustained say, only 1 or 2 mass extinction events instead of the 5 that the earth has already seen in it's 4.6 billion years . Would that give an advantage to some other alien race calling that planet home? A sort of chronological head-start needed for it to advance that much quicker and, thus, possess far superior intelligence ? But then, just the opposite could, also, be the case. There may be other countless planets that exist which host many varieties of "prehistoric- like" life forms of which none being" intelligent." The likelihood of knowing that any(or all) these possibilities exist only serves to captivate the imagination even more, simply because we will, likely, never know the answers for sure.

[reactionsu]

1 light year is nearly 6 trillion miles, and even that distance is hard to comprehend. Then you realise that the observable universe is 93 billion light years in diamater 😂. It’s just truly staggering for there to be so much space and expansion

[jodystockley]

Does anybody have the source of this interview? I would love to hear the full story.