Comment by opello

I agree with this take, aside from a plot nuance about all his memories, there was one base factual lie (paternity) that propagated through his memories. I also occasionally rewatch that episode to try to convince myself that the Willow Grain would not be a panacea for so many of the worlds ills that it would outweigh any shame-motivated reason to dislike it.

Put another way, easy and on-demand access to objective truth seems to present a resolution to so many stupid arguments that it just has to net out as a positive where people quit dying on rhetorically silly hills.

As you correctly identify the weakness is when you want access to the objective truth of another. They need not be inclined to share it and this presents a social issue, as opposed to a technical or factual issue.