Ok, this is the point where I decide to be mildly obnoxious and use Sam's work as an indication that humans have many more cognitive biases and fallacies than even people at LW realize. In particular, the above post displays a large amount of artificial classification in trying to claim that specific scale issues somehow become differences in kind. This seems very similar to (for example) creationists who claim to accept microevolution but not macroevolution. Moreover, the presence of these problems does not leave in some cases even after prolonged exposure to careful rational and critical thinking.

The fourth point does a good example of this:

Cryonics has many single-points of failure and many unresolved questions: A couple examples: a.) Is there anything fundamental about death the precludes the possibility of restoring life? b.) Is it possible to maintain self/person-hood by simply maintaing physical state integrity? c.) Is the general concept of organ preservation able to be scaled to entire bodies or is there a limit to what can be restarted? d.) Is a living organism required to overcome the effects of the cryopreservation? etc.

To be sure, there are other problems here as well (such as the heavy overlap between a,b and c and the fact that a seems to take "death" as a potentially ontological fundamental phenomenon), but the issue I want to focus on is c, "is the general concept of organ preservation able to be scaled to entire bodies or is there a limit to what can be restarted?" This is an assertion that while any single part of a system can be restarted, somehow it takes a much higher burden of evidence to assert that the entire system can be restarted. This seems similar to the micro/macro fallacy but I'm not sure what precisely the fallacy is. I'd almost be tempted to coin a new one, something like "failure to reduce."

I have to wonder if this sort of thing is an indication that LW is not substantially succeeding in improving rationality. Sam's first comment on LW was about a year ago, and his posting quality has either remained the same or declined during that time (although to be fair it is difficult to distinguish between rationality and civility issues in his case.) Now, it seems based on comments Sam has made that it is probable that he hasn't read the sequences. Sam's emphasis on wanting to only read "authorities" may play a role but that may be simply a specific defense in this case against reading posts which challenge his worldview (the strongest evidence for this case is that people have summarized the demand for particular proof argument and he's still ignoring or misinterpreting it) . Is Sam a representative sample? If there are a substantial number of people here who have gone through and interacted with the community and yet have not improved their rationality, does that suggest we have a problem that requires a change in tactics?

Sam certainly isn't the only example of this sort of problem, and even the general community here sometimes demonstrates strong biases that impact their evaluation of claims(I've noticed this most strongly where evaluations of historical claims are concerned). So, are we succeeding? Should the presence of people like Sam mean we should be concerned that we are not?