That is what astonishes me. I thought these things would have to be 24 million light years away, not just 24 hundred. That is practically our backyard.

Radiating away 8 million tons per second, and barely noticing the loss.

I marvel that these things aren't magnetars. We will be lucky if no magnetars are found within 500 ly, because a minor disturbance on one that close could end life on Earth. Life in a galaxy is a risky affair. Anybody capable would get far away from the galactic disc, as soon as possible, if they value life. It is no surprise they don't visit us. It is dangerous here.