If humans can't achieve interstellar migration, how many years can the resources on the earth last at most?

Let's look at several time scales. The age of the universe is 65.438+03.8 billion years, the age of the sun is 4.57 billion years, the age of the earth is 4.55 billion years, and the age of human beings is several million years. Dinosaurs ruled the earth for about 65.438+0.6 billion years, and dinosaurs became extinct about 65 million years ago.

If other factors are not considered, the life of the sun is 65.438+00 billion years, that is to say, as long as human beings do not leave the solar system, they will exist for another 5 billion years at most.

But given that the impact of asteroids on the earth led to the extinction of dinosaurs, human beings are also facing such risks. If humans are as lucky as dinosaurs, then humans can exist at least 1 100 million years. If you are unlucky, there is nothing you can do.

Of course, human factors, including biological and social factors, are not taken into account. Human beings have evolved from millions of years ago to the present, and who knows what human beings will be like in millions of years.

Perhaps,100000 years can make itself evolve. If so, then humans may only exist for about100000 years.

However, I am more optimistic. Even if it is only given to human beings for one million years, with the current development trend of science and technology, it is estimated that human beings can also realize interstellar travel and find aliens.