Do you think such MACHO microlensing effects would work in the agglomerate to account for the famous claim of "Direct Empirical Proof of the Existence of Dark Matter" (there's a bold title) in the cluster merger 1E0657-558? (link
chandra.harvard.edu/photo/2006/1e0657/media/paper.pdf
)
Here the graviational lensing center off-set was interpreted to indicate dark matter (aka. "somthin's there, gotta be DM"). Seems like MACHOS are appearing in concert with the extension of observational power.
