text:  was less than 10% as strong as the great geomagnetic storm of 1921, which is what the computer models are based on. And that was 50% weaker than the 1859 Carrington event. So that storm that wiped out South Africa, that knocked them on their butt for a whole year, that was like a baby storm compared to the ones we're talking about. And the reason we're so unprepared is that the last time the big storm like this hit