None of us, after 2020, will ever again take even our simplest indulgences for granted. How much more culpable, then, was any complacency the industry may have permitted itself, over the years, in the patronage of the greatest investor in its history? His absence from the September Sale, a year after once again heading the buyers' table at $16 million, sharpened a sense of the incalculable collective debt owed to Sheikh Mohammed. His team did resurface, to much relief locally, for Book 1 of the October Sale at Tattersalls last...