125 engineers in the contributor list, but one person holds 92.5% of all structural gravity.
Evan Wallace wrote 4,208 commits with every metric at 100. The #2 contributor has Gravity 30 with Design 0, Indispensability 0.
This is a gravitational singularity.
Go (Self-structured)125 Engineers92.5% ConcentrationSingularity
125
Engineers
92.5%
Gravity Concentration
4,208
Evan Wallace Commits
100
All Axes: 100
The Singularity
92.5% of structural gravity belongs to one person
How Extreme Is This?
esbuild
92.5%
express
23.9%
swc
15.7%
prettier
13.4%
react
3.4%
kubernetes
0.8%
rails
0.9%
rust
0.6%
Gravity Concentration: share of total gravity held by top contributors
Top 10 Gravity Ranking
#
Engineer
Gravity
Design
Indisp.
Survival
Commits
1
Evan Wallace
100.0
100.0
100.0
100.0
4,208
2
Ade Viankakrisna Fadlil
30.0
0.0
0.0
0.0
6
3
Pig Fang
30.0
0.0
0.0
0.0
6
4
Mike Cook
30.0
0.0
0.0
0.0
4
5
Justin Ridgewell
30.0
0.0
0.0
0.1
7
6
Ryan Tsao
30.0
0.0
0.0
0.0
16
7
magic-akari
30.0
0.0
0.0
0.2
9
8
Liu Bowen
30.0
0.0
0.0
0.0
3
9
Tommaso De Rossi
30.0
0.0
0.0
0.0
4
10
John Gozde
0.2
0.5
0.0
0.0
1
Note: Contributors #2-#9 all have Gravity 30.0 from Breadth (100) alone. Design = 0, Indispensability = 0, Survival = 0. They contributed code, but none of it became structural.
Insight
esbuild proves that a single brilliant architect can build an entire universe alone.
Evan Wallace created esbuild as a demonstration that JavaScript bundling could be 10-100x faster. He wrote 4,208 commits with every EIS metric at 100 — Gravity, Design, Indispensability, Survival, Breadth, all maxed out. The #2 contributor has Gravity 30 (Breadth only) with zero structural influence.
This is the extreme end of the architect-centric model — a gravitational singularity. The 92.5% concentration is 115x higher than Kubernetes (0.8%) and 103x higher than Rails (0.9%).
For a small, focused tool, this works. esbuild is fast, correct, and well-designed precisely because one person controls every structural decision. But it also means the project's entire architecture is encoded in one mind. If Evan Wallace stops contributing, the structural knowledge goes with him.
A singularity is powerful, but it cannot be succession-planned.