The lack of activity on this blog over the last several days can be explained by the formula --

G = gloomy gray skies
Ds = short days
Sl = long semester
Co = company every day
Pg = food galore
Tr = elevated tryptophan levels
Dk = wine at 2-3 times normal intake
Fz = warm, fuzzy glow from holidays with family and friends, and
Zz = crashing on couch, floor, etc. rather than blogging