Avi Loeb

And all those dead stars could have had civilizations.

Yeah.

Yeah.

And by the way, the sun will die and become what is called a white dwarf.

60% of the mass of the sun packed within a region the size of Earth.

Just imagine that.

It's like a metallic ball, very dense,

And so that will be the end of the sun.

But we know, we see other stars that ended up already as white dwarfs.

We see, you know, the Milky Way galaxy is full of billions of white dwarfs.

So it's just like going to the graveyard.

And you notice in the graveyard are people who are dead.

What does it tell you?

Tells you that you will die.

So it's very simple.

So we have a young star, a relatively young, you know, the last one third of cosmic history.

It has another billion years before it will basically create too much heat on earth and the earth would lose all of the liquid water on the surface.

So we have just one billion years left before

Just the evolution of the sun will not enable life as we know it.

But within 7.6 billion years, the sun will die and the envelope of the sun will expand and engulf the earth.