You know you're in the 21st century when someone dies at the age of 54, and your friends exclaim "So young?!"
The way medical science is going, I wouldn't be surprised to see them keep pushing back the average life expectancty. When I was a kid, it was 70. Now, it's 80. Over the course of 20 years, we gained 10 years. What will the life expectancy be when we start hitting 80?