It's easy to say that this is the best possible time for a human to be alive, when your occupation is motivational speaker. You've got YouTube, and business class, and 7-minute workouts. The message you've got is to disregard the media you're using to send that message.
Try working in a field where this isn't true, and tell us if you still think this is the best time ever to be a human. Do high school teachers (who have to compete with the internet) think 2018 is the greatest?
It actually is the best time to be a human in general, that doesn't mean every person has a perfect life.
Things are better now than they've ever been. There's still poverty, war, famine, disease, etc. but way fewer people die to those things than at any point in history. 80% of the world's children get their vaccines. Girls go to school almost as long as boys. Child mortality is dropping sharply in the world, etc.
So does things still suck for the person who gets terminal cancer? Of course it does. But humanity is doing great.
Try working in a field where this isn't true, and tell us if you still think this is the best time ever to be a human. Do high school teachers (who have to compete with the internet) think 2018 is the greatest?