The internet runs on three layers: the application layer where you use apps like Instagram, the data layer that moves information across networks, and the physical infrastructure of data centers below. Each layer depends on the others to work.
Right? So there's these kind of 3 layers, application layer, the data layer, and then below it is the physical part of it. So the application layer, which is constructed of the things that you actually use, this is what you actually experience. This is where the user interface is really good. This is like Instagram when you open Instagram and you could see all the pictures, the actual app. Under it is the data layer, right? The data gets transferred, it gets compressed, sent, compressed, sent. And then below it is the physical actual like places, like it's called data centers. Have you seen it before? There's like a whole bunch of data centers and this is the physical part of it, right? So there's these kind of 3 layers.
