Finally got around to looking at this. I didn’t read the paper carefully, so I may have missed something, but I could not find anything that makes me more at ease with this conclusion.
Ben has already shown that it is perfectly possible that Y causes X. If this is somehow less likely that X causes Y, this is exactly what needs to be made precise. If faithfulness is the assumption that makes this work, then we need to show that faithfulness is a reasonable assumption in this example. It seems that this work has not been done?
If we can find the precise and reasonable assumptions that exclude that Y causes X, that would be super interesting.
Finally got around to looking at this. I didn’t read the paper carefully, so I may have missed something, but I could not find anything that makes me more at ease with this conclusion.
Ben has already shown that it is perfectly possible that Y causes X. If this is somehow less likely that X causes Y, this is exactly what needs to be made precise. If faithfulness is the assumption that makes this work, then we need to show that faithfulness is a reasonable assumption in this example. It seems that this work has not been done?
If we can find the precise and reasonable assumptions that exclude that Y causes X, that would be super interesting.