[rkhassen9]

I once found a recording of a lab session in high school physics. A day I completely forgot about. A moment that had no bookmarks in my brain.

Other things about that day were surfaced. How my braces felt and the fear I felt about forgetting a textbook.

All real, but unsurfaced until then.

[t0mas88]

That makes sense considering that human memory is strongly based on associations. Activating nearby memories can bring things back.

If you hear the first tones or words of a song you're much more likely to be able to tell the lyrics that follow compared to being asked to say those lyrics based on the title.