If we look at history on the large scale, it seems things have generally gone upwards: health, wealth, and liberty. That being said, the upward trend means eve

If we look at history on the large scale, it seems things have generally gone upwards: health, wealth, and liberty. That being said, the upward trend means even greater dips occur than were possible in the past. So, the general optimistic trend of history is countered by the previously unimaginable horrors of the 20th century made possible by our great progress.