What are the two key phases of personal finance according to Scott Galloway, and how should people approach them?

According to Scott Galloway, personal finance consists of two key phases: investing and harvesting. The investing phase occurs during younger years when individuals should save money to deploy capital that grows while they sleep, providing future security. During this phase, market downturns are actually beneficial as they create opportunities to purchase assets at lower prices. The harvesting phase comes later in life when one begins spending more than earning, living off accumulated investments. Galloway criticizes current economic policies that artificially support markets through government intervention, which prevents younger generations from experiencing the natural investment opportunities that market cycles would normally provide.