I had a sort of holographic display installed on which I could replay events from my life in full 3D and somehow access the mental states and intentions of the people involved.
That's interesting. I had a similar experience on that same combo - not the holographic display, that's your patented creation! - where I revisited memories from my past which seemed to be back in full detail, but with enhanced perception and insight into my thoughts and intentions.
Time seemed to compress and memories that I thought I'd lost forever came back with such vitality that they were like a physical presence in the room with me. For roughly an hour I had these invisible yet tangible swirling memory-entities with me, giving insight and reflection into past situations. People I'd known, songs I'd liked, places I'd been - things from a decade ago came back as if they were happening right then and there. And most interestingly was that the very thoughts I had had during those moments came along with them in incredible detail; every whim and day dream and anxiety of that time came back as if they were fused together with the other tactile and sense memories - which I suppose they are.
It's like my narrow, immediate task driven everyday mind had widened and the greater memory banks which contain every intricate detail of experience had opened.
I was in a very different mindspace to daily life during this, but I was also quite lucid. Lucid enough to know that the minutiae of memory bytes coming back to me were in fact the real thing, and not some delusion. At least, I believed it to be the real thing. Some of the memories that were unlocked at that time are still with me now, and have been verified by looking over photos, song lyrics, and old emails from the time. Other things can't be verified, so I guess I'll never know for sure.
But still, it's amazing to think that our minds hold every thing that's ever happened to us inside, down to the smallest most trivial detail, even if we can't recall them at will.