Black hole stars may have been the largest stars to ever exist. They burned brighter than galaxies and were Larger than any star today or that could ever exist in the future. But besides their scale, what makes them special and weird is that deep inside, they were occupied by a cosmic parasite, an endlessly hungry black hole. How is that even possible?
You are in the middle of everything in the Universe.
Let us go on a fantastical journey together - to the impossibly small and the incomprehensibly large!
Black holes might create infinite universes while destroying time and space.
Everything in existence could be black holes, all the way down. We might live
inside a black hole that is inside a black hole, that is inside a black hole.
But let’s start at the beginning and build a black hole out of air.
Your tattoos are inside your immune system, literally. With each very tasteful piece of art, you kick start a drama with millions of deaths,
grand sacrifices and your immune system stepping in to protect you from yourself. Let us get under your skin with our newest video.
The universe is going to die one day, and a fight between two titans will decide our cosmic fate.
On one side of this galactic battlefield, we have all the matter in the universe; on the other side, empty space infused with dark energy. Whoever wins will kill the universe in fun ways.
But who will that be?
We're looking at three possible ways to destroy the universe in our newest video.
The Universe is incredibly big and seems full of potential for life, with billions of habitable planets. If an advanced civilization had the technology to travel between the stars, at just 0.1% of the speed of light, It could colonize our galaxy in roughly 100 million years. Which is not that long given the billions of years the milky way has existed – so in principle any spacefaring civilization should be able to spread rapidly over huge sectors of the galaxy. And yet we see nothing, hear nothing, the universe seems empty. Devoid of others. This is the Fermi Paradox, which we have discussed in more detail in other videos.
The universe is magnificent and vast. Hundreds of billions of galaxies, trillions of stars, and even more planets. If even the tiniest fraction are habitable, then the Universe should be teeming with life. And yet we see nothing, only vast emptiness. Where is everyone else?
The answer to this riddle could be as exciting as it is creepy: we are early, born before almost all other life – but very soon this may change. Not only might aliens appear, they could quickly surround us. An irreversible competition for the universe might be about to begin.
We often assume that advanced technology will make it easy for aliens to colonize space. But what if space exploration is always difficult, no matter how advanced you are?
Let’s travel back in human history, to the colonization of Oceania over 5000 years ago, to find parallels between ancient explorers and extraterrestrial civilizations.
@Kurzgesagt_InaNutshell
We need to have an honest conversation about smoking: The problem with smoking is that it is way more than just a physical addiction.
Smoking creates a temporary problem and offers an instant solution. Once your brain is used to nicotine, for up to 72 hours you are itchy,
nervous and stressed – but one drag and instantly, you feel really good. It also helps you focus and take breaks during work, while suppressing your appetite.
So why is it such a bad idea?
Is Civilization on the Brink of Collapse?
At its height, the Roman Empire was home to about 30 % of the world’s population, and in many ways the pinnacle of human advancement. Rome became the first city in history to reach one million inhabitants and was a center of technological, legal, and economic progress. An empire impossible to topple, stable and rich and powerful.
Until it wasn’t anymore. First slowly then suddenly, the most powerful civilization on earth collapsed. If this is how it has been over the ages, what about us today? Will we lose our industrial technology, and with that our greatest achievements, from one dollar pizza to smartphones or laser eye surgery? Will all this go away too?
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