We talk about a wide variety of stuff on LW, but we don't spend much time trying to identify the very highest-utility stuff to discuss and promoting additional discussion of it. This thread is a stab at that. Since it's just comments, you can feel more comfortable bringing up ideas that might be wrong or unoriginal (but nevertheless have relatively high expected value, since existential risks are such an important topic).
Has anyone tried advertising existential risk?
Bostroms "End of Humanity" talk for instance.
It costs about 0.2 $ per view for a video ad on YouTube, so if 0.2% of viewers give an average of 100 $ it would break even. Hopefully people would give more than that.
You can target ads to groups likely to give much by the way, like the highly educated