I'm here because and while it's enjoyable - LW is marked as part of the Internet-as-TV time budget. That said, I feel more rational, I think because I'm paying attention to my thoughts. But e.g. I'm not actually richer and don't have a string of interesting new achievements under my belt. The outside view shows nothing.

If your answer is "it would look like the world is now" - then what would the world look like if it was effective and did work, for whatever value of "work"? (I'm thinking a value something like "what one would expect trying a new thing like this and wanting to get tangible self-improvement value out of it", though I'm open to other possible values I haven't thought of.)