“Cash cow” can be passive or active mgmt, but is reliable, not diminishing

“nonwork income” can be passive or active.

Truly passive income is rare.

• div stock is more passive than rental property, but less consistent in most cases.
• GRR

Passive (GRR) or active rental income is the best inflation-proof passive income. Dividends are also effective. In contrast, insurance products don’t provide good inflation protection.