A sense of proportion - Anders Sandberg konferenssin annista.
When thinking about existential risks it is important to have a sense of what the stakes are, and not just think "that is bad" - some things can be many orders of magnitude worse than others. At the same time, as Nick Bostrom pointed out, we have rather minimal research on how to prevent human extinction, about the same size as the literature on dung beetle reproduction. Toby Ord has pointed out that some charities can be up to 10,000 times more efficient in providing health than others (in terms of years of life per dollar donated), just because they focus on particular very effective means. Aubrey de Grey showed a pretty minor advance in biogerontology that was hailed in the media as "the secret of ageing", while rattling of a series of papers with far more profound implications that nobody outside the field has heard of. A graph of cost and size of carbon abatement methods clearly shows that some fix a vastly bigger chunk than others.