We cannot get eany energy from them if there is no oxygen. V.5.10. This process is continuously occurring in the core of our sun and other stars and is responsible for their light and heat. For example, today it is impossible to be without the telephone system in New York, or computers in the country. These have become necessities. Yet, for long centuries we have lived without these. VI.3.4.
Some people refuse to have children because they are bothersome, and impose a responsibility.
They think they can live without children. However, when such people grow old the need the help of much younger people who have been brought up by other parents. Nature creates many illusions, of which the size of stars and the rising and setting of the sun are but two examples. This could well be a reason why very creature has to die. The planet Pluto is some two billion miles from the sun.