CUE Research · Study 11
Forbes marks every fortune as self-made or inherited. Inherited wealth is the control group: a birthday cannot help anyone inherit.
The question: If a birthday pattern belongs to wealth, does it show among people who built their fortune and not among heirs?
Testing CUE’s claim
The claim was stated before this data was examined, so each test asks one narrow question: how often would random birthdays from the same years give that value as many people as it really has?
Born on the 28th appears about as often as chance gives, in every group.
| Group | People | Expected | Share | Expected share | By luck |
|---|---|---|---|---|---|
| Self-made | 3 of 130 | 4.3 | 2.3% | 3.3% | about 1 in 1 |
| Inherited | 2 of 42 | 1.4 | 4.8% | 3.3% | about 1 in 2 |
| Everyone | 5 of 172 | 5.7 | 2.9% | 3.3% | about 1 in 1 |
1 day energy appears about as often as chance gives, in every group.
| Group | People | Expected | Share | Expected share | By luck |
|---|---|---|---|---|---|
| Self-made | 16 of 130 | 17.1 | 12.3% | 13.1% | about 1 in 2 |
| Inherited | 8 of 42 | 5.5 | 19.0% | 13.1% | about 1 in 6 |
| Everyone | 24 of 172 | 22.6 | 14.0% | 13.1% | about 1 in 2 |
No clear differences. Across every group of 50 or more and every measure, the numbers are within what chance produces.
Self-made: 11 day energy appears 23 times against about 12.6 expected (1.83×).
Everyone: Life Path 4 appears 25 times against about 15.0 expected (1.67×).
Everyone: 11 day energy appears 27 times against about 16.6 expected (1.63×).
Everyone: Apr appears only 5 times against about 14.1 expected.
Self-made: every birth quarter is within normal variation of random birthdays from the same years.
This is the sharpest wealth test CUE can run. If the 28th or 1 energy reflects something about the person, it should appear among self-made billionaires. Heirs got their money from a parent, so any pattern among them is chance or family.
The inherited group is small in this list, so it is described rather than tested. The study will be rebuilt on the full world list of about 3,000 billionaires.
Reproduce it: the raw data snapshots and build scripts are in CUE’s code repository (scripts/data and scripts/build-*-study.mts).