Your Brain Often Fabricates Your Memories
You may believe your memories are perfect recordings, but your brain frequently rewrites the past. It often mixes imagination with reality, causing you to vividly recall events that never actually took place.
Memory is not a camera capturing footage but rather a reconstruction process that happens every time you remember something. Factors like leading questions or hearing stories from others can easily seep into your mind and become false details. Because your brain seeks to create a coherent life story, it will naturally fill in gaps with whatever information feels plausible. This means your confidence in a memory is not a reliable indicator that it actually happened.
Source: False memory