Communication is instantaneous and global. The jet has turned our world into a village. But the 20th century also saw the continued weaknesses of humankind. There were two world wars and countless smaller ones. Two-thirds of the world still exists in poverty and hunger.
Slavery is still alive in pockets around the world.
Tyrants and madmen still practice ethnic cleansing. Pat Buchanan wants to be president of the United States. The human race, so clever in many ways, still seems to have a hard time deciding between right and wrong. But progress is being made in the education of man. We are getting smarter.