Sample size?
The rate in which such primordial black holes would form binaries and collide matches with LIGO's observations, the scientists say.
With only two confirmed LIGO observations of gravitational waves, it seems a bit early to be making this assertion.
Not saying they're wrong or right, just commentarding on the apparent number of data points they've used to draw this conclusion. Maybe they more data they've not made public yet...?
Biting the hand that feeds IT
