The most important gap of all

A closer look at the geometric gap created by five tetrahedrons all sharing a common edge.GeometricGap3
Gap = 7.356103172453456846229996699812179815034215504539741440855531+ degrees

 Related key pages:
1. Numbers: 2016
2. Pentastar: 2017
3. Duped: 2020
4. A homepage: 2020
5. Zoomtool question: 2016
6. Inquiry for FQXi-related study: 2020
7. Within the light of a star, Vincent Van Gogh, and the church:

Open questions about this gap:
1. When does the first gap appear along the 202 notations?  …why?
2. There are no gaps with the initial objects, the tetrahedron and octahedron; it all fits perfectly, naturally evolving from cubic-close packing of equal spheres
3. The first time the gap is mentioned within this website:
4. Starry, Starry Night by Don McLean captures this gap and its quantum indeterminacy. Perfection would be stifling it it did not have room for creativity and loss and even despair. In some camps McLean’s song is also known as Vincent (as in Van Gogh).
The recording: Official: Vincent
A tweet to Don McLean: