Seneca opens with an inversion that reframes the entire complaint.
The common position is that life is short and time is scarce. Seneca’s diagnosis is more precise: life is not short. You have been given an enormous allocation. The problem is that most of it has been squandered — on distraction, deference, the priorities of others, and the endless preparation for a living that never quite begins.
This distinction is not semantic. It is operational. A short life is a constraint you cannot address. A wasted life is a behavior you can change — starting today, not when circumstances improve.