How long can the earth's resources be used by human beings, Zhihu?

With the continuous progress of human science and technology, if there are no irresistible factors. Human survival is not a problem.

The five billion years I mentioned upstairs are only based on the current human consumption of resources.

However, as I said, human beings are constantly improving. Now the world has slowly begun to pay attention to sustainable development. The use of resources will be more and more restricted.

As long as the level of human civilization continues to improve according to the present development, I think, whether it is energy or biological resources. There must be a better way for mankind than now. To control resources. Rational use of resources.

But ... 5 billion years is indeed a major difficulty for mankind. In five billion years, the sun will run out of nuclear materials. Slowly transformed into a red giant, at this time. The earth will cease to exist. . Of course. If 5 billion years. Humans have established settlements on other planets. This will avoid this disaster. But ... these are not our considerations.

All right. It seems to be beside the point. . Not much.

My point is. How long can resources last? Just look at how humans use it. Because the laws of physics: the laws of conservation of energy and conservation of mass tell us. Resources will not disappear. It just became something else. If we can recycle it. No problem.