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satt comments on The Pre-Historical Fallacy - Less Wrong Discussion

13 Post author: Tem42 03 July 2015 08:21PM

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Comment author: DanArmak 04 July 2015 10:59:43AM *  2 points [-]

Results that you should have reasonable levels of confidence in should be framed in generalities, not absolutes. E.g., "The great majority of human cultures that we have observed have distinct and strong religious traditions", and not "humans evolved to have religion".

The former is an empirical claim of a strong pattern which, if true, requires explanation. The latter is a hypothesis that explains it, makes falsifiable predictions, and is useful if true.

Are you saying the specific hypothesis is problematic, or that the whole logical structure is?

It may be true that we have areas in our brain that evolved not only 'consistent with holding religion', but actually evolved 'specifically for the purpose of experiencing religion'... but it would be very hard to prove this second statement, and anyone who makes it should be highly suspect.

To prove the second statement, we just need to find gene variants that are strongly correlated with religious beliefs. ETA: and manipulate them experimentally to determine the direction of causality, or observe the effect of natural mutations.

Comment author: satt 05 July 2015 05:53:36PM *  2 points [-]

It may be true that we have areas in our brain that evolved not only 'consistent with holding religion', but actually evolved 'specifically for the purpose of experiencing religion'... but it would be very hard to prove this second statement, and anyone who makes it should be highly suspect.

To prove the second statement, we just need to find gene variants that are strongly correlated with religious beliefs.

No, the second statement hinges on a causal claim, so correlations alone can't prove it unless supplemented with strong causal assumptions. Gene variants being correlated with religious beliefs is consistent with three different causal hypotheses: (1) gene variants influence religious belief, (2) religious belief influences gene variants, and/or (3) gene variants and religious belief have some common cause. Correlations only tell us that at least one of the hypotheses is true; they don't allow us to conclude that hypothesis 1 is correct.

ETA: [does Fonzie thumbs-up] aaaayyyy!

Comment author: RichardKennaway 06 July 2015 08:43:23AM 0 points [-]

It don't know why this got downvoted, as it is completely correct.

As a practical example, consider the correlation between intelligence and Ashkenazic ancestry, and how that arose, with respect to those three alternatives.