Warning: will not be funny to most readers!
Background: Decades ago, the International Organization for Standardization developed the Open System Interconnection model for data systems (see ITU Recommendation X.200, Sec. 6.1.2). It's founded on seven separate layers of particular protocols or functionality:
To some extent, the TCP/IP protocol driving the Internet uses such layering.
With the Democrats recently proposing to regulate the Internet, the latest inside-the-Beltway engineering joke postulates adding two new layers to the OSI model:
If you don't get it, don't worry--it means you're normal.