Only five thousand years we have passed, and the number of sinful men is already greater — three-fourth’s sinful men, one-fourth pious men — and it will increase, and gradually it will become zero.

And the total duration of life of Kali-yuga is 432,000’s of years. That means there is a balance of 427,000’s of years to finish this Kali-yuga. And gradually, with the advancement of Kali-yuga, people’s duration of life, memory, mercifulness, religious propensities, in this way eight items — they are described in the Srimad Bhagavatam — will reduce. We can see practically at the present moment, people are not very strong in body. They are lean and thin. And not only in India — we are poverty-stricken — but in Europe, America, also I see. The Europeans and Americans are no more as tall men or very stout men, very… So reducing their bodily strength and memory. That is also fact. We cannot memorize very sharply. People are becoming more and more dull. No more very brilliant scholars are coming out, philosophers, mathematicians. And duration of life, everyone knows it is reducing. In India the average duration of life is thirty years. So this will reduce. And dharma, sense of religiosity, that will also reduce and become more and more punishable by the Yamaraja. Yamaraja is there.

Srila Prabhupada – Lecture – Srimad-Bhagavatam 6.2.3 – September 7, 1976, Vrndavana