By "resolved" he means that the effect was generated by a spell or an activated or triggered ability. That is, as a result of something that "resolved," as opposed to a static ability. (Like the difference between a spell that says, "All creatures become white," and an enchantment that reads, "All creatures are white.") The example given is of a land that has been animated so that it's also a creature, then was the target of Ashnod's Transmogrant, which as part of its effect causes a target non-artifact creature to become an artifact in addition to its types. The ruling was that, once the animation effect wears off, the land is still an artifact, since the Transmogrant's ability does not depend upon the affected permanent being a creature. A difference would be if, instead of Ashnod's Transmogrant, you had an enchantment in play reading, "Nonartifact creatures are artifacts in addition to their types." Once the animating effect wears off, the enchantment would cease to affect it since it depends upon the animating effect. I'm not sure what this has to do with Sleight of Mind, though. It seems that the Rules Team wants us to interpret the Sleight of Mind (and Alter Reality) effect as continuously watching the targetted permanent, changing instances of words when they appear, rather than simply changing the words when the spell resolves. That would mean that Sleight creates one continuous effect that in turn creates another continuous effect when appropriate. It makes sense, but some clarification of this someplace in the CompRules would be welcome.