The reason Chen Chen had extracted the black goo was ultimately to use it as a longevity technology.
Why was Chen Chen obsessed with longevity? In other words, why did human beings pursue longevity?
It was because this was an inevitable phenomenon.
As science and technology became more advanced, mankind was bound to be unwilling to live for only a brief one hundred years. Compared to the span of time measured out in hundreds of millions of years, a hundred years was like the twinkling of an eye, almost meaningless.
Furthermore, with the development of science and technology, the accumulation of knowledge became increasingly difficult. In ancient times, people could inherit the wealth of knowledge accumulated by civilization in just ten years of diligent study.