Arrow of time theories

The "arrow of time" refers to the idea that time moves in one direction—forward—from the past to the future. This concept is often explained through three main perspectives: 1. **Thermodynamic Arrow**: Time moves forward as entropy, or disorder, increases. 2. **Psychological Arrow**: We remember the past but not the future, shaping our experience of time. 3. **Cosmological Arrow**: The universe is expanding, indicating a specific direction of time. Together, these theories help us understand why we perceive time as flowing in one direction rather than the other.