『Die with Zero』要約

In Die with Zero, investor Bill Perkins argues that the conventional trade-off of time for money is usually miscalculated, because life’s experiences have expiration dates that don’t align with the timing of peak earnings. His central framework is “net fulfillment”: money is only a means to memorable experiences, and those experiences yield the most satisfaction when you’re young enough to fully enjoy them. Perkins illustrates this with his “memory dividend” concept, where a single costly trip or concert keeps paying back in recalled pleasure for decades, whereas dollars left in an account compound only financially. He introduces “personal interest rates” to show that a dollar spent at 25 is worth far more in life satisfaction than the same dollar spent at 75. The book urges readers to “die with zero” not as a literal goal but as a planning target: aim to have your last check bounce. To do this, Perkins recommends calculating your “life energy” budget, identifying the experiences you want before specific ages, and then “giving money to your heirs while you’re alive”—early inheritances when children need them, not after they’re retired. He also advises purchasing “experience insurance” like long-term care policies to avoid hoarding for worst-case scenarios, and automating savings so you don’t default to endless accumulation. A recurring argument is that over-saving is a hidden risk, not a virtue, because unused money represents wasted potential experiences. Perkins challenges the retirement industry’s assumption that more is always safer, and proposes “time buckets” for different life stages. While critics note his advice presumes ample discretionary income, the core message is to optimize for fulfillment across a lifetime, not just for a balance at death.