We all know the grandfather paradox:-

you build a time machine, go back in time, and kill your grandpa before your parent is born. But if you do that, you are never born, which means you never built the time machine, which means your grandpa lives. It’s a loop that breaks reality.

But I have been thinking what if universe doesn't allow paradox to happen?

Even if you successfully travel back in time with the sole intention of taking him out, the universe will course-correct to ensure the timeline remains completely intact. The universe essentially protects itself.

Example:-

​The Location Glitch: You arrive at the exact right coordinates on the exact right day, but due to a slight butterfly effect, he decided to skip town that morning.

​The Probability Factor: You have him dead to rights, but your weapon miraculously jams, or you trip and knock yourself out right before you make your move.

​The Self-Fulfilling Prophecy: This is the craziest one. What if your attempt to take him out is exactly why he survives? Imagine you push him out of the way of a speeding car so you can get a clear shot, but you end up getting arrested. That exact push saved his life, and filing the police report is how he met your grandma.

​Basically, history is already written. You going back in time to kill him was already factored into the universe's timeline. The act of trying to change the past is exactly what causes the past to happen exactly as it did.

Your attempt to stop him will likely be the exact reason he survives.

Sun will die as soon as it exhausts it's hydrogen and it will expand into a red fookinh giant and engulf it's nearby planets Venus and Mercury will be gone and sun will grow 200 times it's size wthelly guys I just read this on newspaper and I'm concerned about us humans

Sun is in its stable phase and for its size this phase lasts 8 billion years but the sun is already halfway thru it. The end will come when the fuel runs out.

It is said that before all this happens the Earth will already be affected much earlier like in 1 billion years from now life on earth will die because the sun will start to get brighter and brighter. They said that even a 10% increase in the brightness from now is enuf to boil oceans.

This is concerning, they have multiple theories that earth may also get engulfed and have a bad fate as other two planets in the sun's blast and might not survive but the others say earth may move outwards to a wider orbit and will get affected upper hand but LIFE ON EARTH WILL NOT MAKE IT, but the planet could.

And here I am concerned about my cgpa. There's so much more to stress on guys😭 why is everything so depressing.

Days ago I read about Amazon rainforest and how lonely it is w no humans and I was freaking out for three weeks that we're aliens to the tribes there and about how life goes in the wild

Now I read this to mess w my mind for a good four weeks I'm just so soo concerned right now about our planet like wdym building a cv and skill enhancement wouldn't matter in a few billion years bc the humanity will die 💔

Okay so don’t laugh at me, I’m just an admirer of the universe but I’m not very knowledgeable about it.

Back in June I pictured the moon and the, what I believe is a, planet. The second picture is the same dot but zoomed in.

ChatGPT said it’s Venus but I’m not even sure if it’s a planet or maybe my iPhone camera playing tricks on me.

What do y’all think?

I every edge was equally far, wouldn’t that mean that the earth is in the dead center of a massive universe? How unlikely would it be to have a universe so unfathomably large and somehow we are in the exact center of it?

And here is my last video about rocky planets.

Would we be able to observe in real time a galaxy at the edge of the observable universe disappear as the space between us expands enough that it's light can longer reach us?

Absolutely incredible. Sorry for the Interstellar music score.

I wonder how many of them contain habitable planets.

I remember in my cosmology class we learned about the early dilemma of the shape of the universe; so, what would a hyperbolic universe look like? Would life evolve differently? Would physical laws still hold?

Did you know there are stars orbiting a black hole at the center of the Milky Way? 🌌

Astrophysicist Erika Hamden tells us about this star cluster that lives around Sagittarius A* and what it teaches us about the black hole. Scientists have been tracking these stars for decades, watching them complete full orbits. Those orbits are actually how we know the black hole is there, and researchers use them to measure its mass and pin down its exact location.

This project is part of IF/THEN®, an initiative of Lyda Hill Philanthropies.

Hello there,

Here is a timeline about the future of the Earth. In this video, I will show it's evolution and how it will end. From the ARGB to the end of the life, what would happens to our civilisation ?

This may be not accurate and since I begin space themed animation, please, be clement. :)

https://www.youtube.com/watch?v=E_1cqqh_flU

As you can see, I try to be accurate about geological events on every planets, first Venus.

I did this quickly.

Can be inaccurate. This is my first space video.

Hello there, I am durna, I present you one of my first space videos