The surface · 99.9th percentile
The Nereid Society
“First among those who see beneath the surface.”
99.9th percentile of the adult population (IQ 146.35, SD 15; a reported IQ of 147 or higher)1 in 1,000
The name
In Greek myth the Nereids were the fifty daughters of Nereus, the old man of the sea, and Thetis, whose name the adaptive test carries, was the first among them. The Nereid Society is the first level of the four: the surface of the ocean, where one person in a thousand rises.
The criterion
99.9th percentile of the adult population (IQ 146.35, SD 15; a reported IQ of 147 or higher). About 8 million people alive today meet this criterion: one in every thousand adults.
Qualifying scores
| Test | To qualify |
|---|---|
| THETIS | IQ 147 or higher; retakes allowed, the best verified certificate counts |
| RUFIT | 16 of 36 or more (IQ 147+); one attempt |
| PROTEUS | IQ 147 or higher on the score report |
| QUADRAVA-FR | IQ 147 or higher on the score report |
Scores are deviation IQs (SD 15). There are no membership dues: the fee of your qualifying test covers the review of your application.
Roll of members
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Below 1,000 metres · 6σ
The Aphotic Society
“Where no light reaches, the rarest minds make their own.”
IQ 190+ · 6σ≈ 1 in 1 billion
About the Aphotic Society
The trenches, below 6,000 metres · 7σ
The Hadal Society
“Beneath every depth, a deeper one.”
IQ 205+ · 7σ≈ 1 in 780 billion
About the Hadal Society