Anyhow...
Anyhow, if we accept the view that senile degeneration is caused by external influences, it means that if the tissues of the human body are secluded from these particular influences it is theoretically possible to prolong life, to delay senility and even to control it eventually. The other view tends to suppose that living cells and tissues are governed by a natural law according to which they carry within themselves the seeds of their complete exhaustion.
They, in their natural course, pass through the stages of old age and senility and eventually cease to function. Even if we accept this view it does not mean that this natural law is not flexible. In fact it is supposed to be a flexible law, for we see in our ordinary life, and it has been confirmed by scientific laboratory observations also, that senility is an untimely physiological phenomenon in the sense that sometimes it appears early and sometimes very late.
It is a common experience which has also been confirmed by the observations of the physicians, that many a man of advanced age still possess a supple body and do not suffer from any old age ailments.
It is because of the flexibility of this natural law that the scientists have already succeeded in prolonging the life of certain animals, hundreds of times beyond their normal span of life by artificially creating conditions conducive to the delay of senility.[^1] They have falsified the law of natural senility by acquiring brilliant successes and have made it clear scientifically that to postpone senility or to provide opportunities and specified factors therefore is possible and if present day science is not able to enforce this programme in the case of phenomena like human beings it is on account of the fact that more difficulties are involved in the matter with regard to man as compared with other animals.
In a nutshell, it is logically and scientifically possible to prolong life, though it is still practically impossible to do so. Anyhow, science is endeavouring to make it practical also. If we consider the question of the Mahdi's age in this light there appears to be nothing strange or surprising about it, for it has been proved that such a long life is logically and scientifically possible and the scientists are working to turn its possibility into a reality.
All that appears to be surprising is that the Mahdi has attained such a long life before the scientists have been able to turn its theoretical possibility into a practical one.