It can easily be argued that at this point in human history things are better than they ever were. Up until the modern inventions of antibiotics and other marvels of modern medical care, people were dying of ear infections, and the flu, and "common" ailments that today we take for granted.
Wars in our past were extremely more brutal, and widespread. The brutality of the American Civil war to the 2 World wars of last century are examples of this. Things are also perspective as well. If you were sold into slavery as an African, in the 17th or 18th century, then you were living in the worst "days". If you were starving in an impoverished country, no matter what time period, those were the worst times for your history.
If you were a Jewish person during the Holocaust, you were most likely thinking you were in the "final days". If you were an American indian during the 17 and 1800's, slowly watching your culture and people being wiped away, that was your Armageddon.
There are countless examples that could be given, and during ANY century of documented human existence, that could be argued were the "worst" times in history, especially if you were on the "wrong end" of it.
Yes, there are still plenty of current horrors that are befalling people around the earth. Yet, we have the best medical care EVER. We have the most educated groups of people and opportunity for education, around the planet, especially with modern technology, than ever before. Our life expectancy, and birth rate are greater than ever. Mass starvation, and epic famines, are no where near the scale of what they were only 20 years ago.
It can be argued that with the continued break thrus of modern technologies, and the sharing globally of thoughts and ideas via the internet, we are going through a modern "renaissance" so to speak. The quality of life for MOST, and on the largest scale ever, has increased exponentially, and is only getting better.