Just so we’re clear

Involuntary thinking is: (1) Compulsive, having no off switch, generating by one estimate 85 thousand thoughts per day. (2) Negative, punctuating its bleak, fox-holed landscape with volcanic bursts of catastrophism. (3) Repetitive, donkey-walking the same block in the same neighbourhood, day after day. (4) Future-based, in which unruly and profligate dimension it fattens itself on worst-case scenarios.