 um, eruptions like the Toba eruption 75,000 years ago that caused, um, you know, mass extinctions on earth. Um, and this, these happen periodically. And so these appear to be correlated, uh, with the geomagnetic events and I believe the pole shifts. So there's some, you know, uh, uh, some, some, um, geological evidence to support it, but you know,