TRUE Limits Of Humanity – The Final Border We Will Never Cross

Summary by Krater

An exploration of the scale of the universe, examining why 94% of observable galaxies are unreachable and how cosmic expansion isolates our local group over time.

From the video

Answers: How much of the universe is unreachable for us, and why?

• cosmic scale
• observable universe
• cosmic inflation
• galaxy clusters
• dark energy
• cosmological horizon
• speed of light

What it concludes

• Around 94% of the galaxies we can see in the observable universe are already unreachable for us forever.
• The universe expanded rapidly during cosmic inflation from the size of a marble to trillions of kilometers in a trillionth of a second.
• Dark energy causes the expansion of the universe to accelerate, meaning everything beyond our cosmological horizon is traveling faster than the speed of light relative to us.
• All galaxy pockets more than about 18 billion light years away are moving away faster than we could physically reach them.
• The Local Group will eventually merge into one giant elliptical galaxy called Milkdromeda in a few billion years.