like in 4000 AD?
Bertran paused and said,
In the year 3900 of the earth' s Gregorian era,
The civilization stage of the earth has entered the first level for the first time,
Humans want to enter the first stage smoothly,
From the first stage to the second stage,
is not an easy thing,
There are two main threats,
It is worth thinking about how to deal with the earth' s human beings,
The number one threat is alien invasion,
Although there are still many people.
Strong doubts about the real existence of aliens,
The second major threat is the human beings on earth themselves,
In the previous 5000 years of human development history on Earth,
The earth' s human beings have overexploited the earth' s resources,
leading to a rapid decline in the natural resilience of the planet today,
If our seas develop in the rough way they were before,
Then, when going to the first stage of civilization evolution,
It is possible that because the earth is difficult to continue to be mined by earth humans,
resulting in severe weather disasters for human beings on earth,
the last mass extinction,
Therefore, modern scientists continue to put forward the concept of green development,
In order to achieve the rapid development of scientific and technological civilization, the earth' s human beings,
protect your home,
Because only in this way, the development of human beings on earth will be meaningful,
hostess