This is a concept of OpenGL rendering that treats scenes as composition elements and the VSE as a compositor... as in After Effects.
This is a test of an attempt to apply the principles of an Andrew Kramer AE composite to Blender's program structure.
Some parts are more procedural than others, but essentially the text animation must be pre-rendered (OpenGL of course).
We may look at a short tutorial series on this concept following the film score project.