one thing i think about is how fast we advanced in technology.
man made the automobile and within less than a century, we were walking on the Moon...
i also think about what the world would be like if we time traveled back and gave people inventions before they were discovered. the world would be such a diff place. Like if we went back to the 1700s or something and introduced the automobile and how to make it. Imagine where we would be now. or if we gave them electricity.
..just pondering