i asked tony licata about where to learn about "geometric mackay correspondence" and about "quiver varieties" ...

suggested nakajima in both cases ... "hilbert schemes of points on surfaces" (??...), and original papers from the 1990's ... but also suggested that some notes by ginzburg on quiver varieties might be helpful ...

??? hmm, so what about possibility that i might actually already understand this "geometric mackay correspondence" (?? ...) stuff better than i realized ?? .... "sophisticated fiber" vs this "resolution" stuff .... ??? ..... ?? "blow-up" and or generalized such .... ???? ...... ???? .....

??? hmmm ... ??? blow-up (?? generalized ?? ...) of subvariety of infinitesimal variety ?? ..... ?? non-functoriality of resolution .... ???? toric case ???? ......data ... symmetry-breaking ... kontsevitch .... ???? ..... ?? irreducible components of singular fiber .... ???? ...... ?? (??dramatic ?? ...) non-flatness of blow-up ... ??? ....