The Mathematics of Paul Graham's Bias Test
One other thing which both this and PG's original theory get wrong:<p>Their basic premise is wrong, if bias continues to exist after the selection event in question.<p>For example, if YC had (hypothetically) a real bias against black or women entrepreneurs, it is <i>almost certain</i> that future funding rounds, as well as all possible exit scenarios, would exhibit very much of the same bias.<p>In which case, the future "performance" of those candidates would be poor, and by PG's definition unbiased even though the only meaningful result is that YC is no <i>more</i> biased than subsequent performance evaluations.