Can my boss stop me setting up my own business in my spare time?

An individual seeks guidance on whether an employer can prevent them from starting a non-competing business during spare time. Simultaneously, reports highlight the profound impact of Israel's war on Gaza on Palestinian men. Ahmed, a former PhD student and professional with three roles, describes losing his family, home, and financial stability. These accounts illustrate the contrast between navigating professional boundaries in stable environments and the total collapse of personal and professional lives during wartime.