Wit in Brevity By Gregory J. Wolos Insomnia 11 by Michael C. Keith (Cambridge, MA, Mad Hat Press, 2020; ~200 pages; $21.95). Each of Michael C. Keith’s pieces in his latest collection of micro–fictions, Insomnia 11, lingers like an amuse-bouche on the palate of the intellect. While some among his readers might find solace in…