It might be about the size of the screen and whether or not you’re standing up.
Start at the bottom. For the first five years of the Internet, the most used function was email. Email remains a bedrock of every device and system that’s been built on top of the internet, though sometimes it looks like a text message or a mobile check in. This is the layer for asynchronous person to person connection, over time.
Moving from left to right, we see how the way we use the thing we call the internet has evolved over time. We also see how devices and technology and bandwidth have changed the uses of the net and, interestingly, how a growth in mass has led to a growth in self-motivated behavior.