It's been a year, but I finally wrote up my critique of "longtermism" (of the Bostrom / Toby Ord variety) in some detail. I explain why this ideology could be extremely dangerous -- a claim that, it seems, some others in the community have picked up on recently (which is very encouraging). The book is on Medium here and PDF/EPUB versions can be downloaded here.
I've skimmed the book and it looks very interesting and relevant. It surprises me that people have downvoted this post - could someone who did so explain their reasoning?
[Responding to Alex HT above:]
I'll try to find the time to respond to some of these comments. I would strongly disagree with most of them. For example, one that just happened to catch my eye was: "Longtermism does not say our current world is replete with suffering and death."
So, the target of the critique is Bostromism, i.e., the systematic web of normative claims found in Bostrom's work. (Just to clear one thing up, "longtermism" as espoused by "leading" longtermists today has been hugely influenced by Bostromism -- this is a fact, I believe, about intel... (read more)