The human race has made huge progress in the past few thousand years, gradually improving the living condition of human beings by learning how to cure illness; improving farming; harvesting, storing, and using energy in several forms; and countless other activities.
Progress is measured over long time scales, and on metrics related to the access to innovations by all, as Ford once noted. So it is natural for us to consider ourselves lucky to have lived "in the best of times".
Why, if you were born 400 years ago, e.g., you would probably never even learn what a hot shower is! And even only 100 years ago you could have been watching powerless as your children died of diseases that today elicit little worry.