If anyone wants explanatory notes, just write to me and ask.
(a few days later) As sometimes happens, my initial enthusiasm for this version of “seem” wore off. What actually happened is that I didn’t like it in practice: I like to think in my ids, and this one didn’t stick in my mind well, was a little hard to hold. I think I’ll go with “think” plus the “iffy” squiggle that I dismissed in the above. Simpler is generally better. One good thing about it is that I can imagine the squiggly line either emanating from “think” or coming at “think”. I like this because “seem” does have this two-way aspect (“from my way of looking at it” vs. “gives the appearance of”).