Magnum - the fact that humans now have the ability to virtually wipe out their (and many other) species. That, to me, is the best argument for those who believe these are the last days.
Planet Earth and the universe have had the ability to virtually wipe out all life and they have done it a few times already - at least five times already. Those are called "extinction events". It's not a credible argument, I'd say.
Remember that End Times theologies in the linear time predate Christianity (Zoroastrism), and are also found in Judaism, Islam, Ba'hai and Rastafarianism. Plus, "End Times" of cycles of time are also part of faiths such as Buddhism, Hinduism, Mayan and Norse mythologies.
Eden