All of Gradus's Comments + Replies

The Tragedy of Group Selectionism

Yeah, this article seems overly harsh on the "restrainists." After all, their assumption could have started from the empirical observation that many species have reproductive strategies that do not emphasize "as many as possible." Humans, elephants, and Lions have few offspring per reproductive cycle relative to spiders and frogs. Clearly SOMETHING is restraining their reproductive rate and promoting a high investment strategy.

The way I see it is that evolution isn't selecting for the genes that produce the most children. Evolution is selecting for the genes that produce the most grandchildren.
The Wonder of Evolution

Even so, it was probably very improbable, considered in an isolated event—but it only had to happen once, and there were a lot of tide pools.

isn't it more likely that the "first replicator" was not a single event, but that it started multiple times and failed to survive in the vast majority of cases?

The Robbers Cave Experiment

"Policy debates should not appear one-sided" doesn't in this case give credence to the idea that a world with suffering implies the possibility of the God. Quite the opposite. That is a post-hoc justification for what should be seen as evidence to lower the probability of "belief in just and benevolent God." This is analogous to EY's example of the absence of sabotage being used as justification for the concentration camps in "Conservation of Expected Evidence"

I didn't mean to suggest that the existence of suffering is evidence that there is a God. What I meant was, the known fact of "shared threat -> people come together" makes the reality of suffering less powerful evidence against the existence of a God.
The Logical Fallacy of Generalization from Fictional Evidence

How much havoc do you think a two-hour movie can wreak on your judgment? It will be hard enough to undo the damage by deliberate concentration—why invite the vampire into your house? In Chess or Go, every wasted move is a loss; in rationality, any non-evidential influence is (on average) entropic.

Yet in my estimation, the most damaging aspect of using other authors' imaginations is that it stops people from using their own

10 years later, post HPMOR, the irony of this is delicious.

Not denying the value of the underlying point -- but one could gather f... (read more)

It's not very ironic. One aspect of rationalfic [] is to load you up with examples of more rational behavior than you've ever seen in fiction so you have better defaults.