None of the above will have a decisive impact on the future of life alone. The four items complement each other, influence and restrict each other, and affect the status quo under the invasion of the external environment. The reasons for any of these developments are far-fetched, and in fact, they are also manifestations of mental imperfection.
Everything in the past has happened and cannot be changed. The situation is changing all the time, and the result is unpredictable. The future is not necessarily the future, but we must strive for it through unremitting efforts.
You don't have to grow melons, and you don't have to grow beans. Natural and man-made disasters are unpredictable, but if you don't plant them, you will get nothing. Therefore, personal efforts are necessary, the main factor, and others are only secondary factors.