We move through the world relying on what we know and experience ourselves only in most cases. When change and innovation happens when building upon what those before us have done and experienced. Those are layers.
The logo, The Stack, represents the building upon those layers. Here there are 3. At that third layer something phenomenal happens. That's the star. That spark. That inspiration. That brilliant idea. Only upon building on what we share as common experience will we reach that. That my friend, is one reason for the name. The other is I like all black clothing.