"We can see there is this bias in the system, but we can't say yet what causes the bias." Ooh, why not make a hypothesis and test it? Anyway, where the hell d

"We can see there is this bias in the system, but we can't say yet what causes the bias." Ooh, why not make a hypothesis and test it? Anyway, where the hell did the headline come from if "we can't say yet what causes ..."?