Very cool. I too have had a couple, completely out of left field "predictions" that occurred ( that I DID NOT have any info about, even vaguely)---however, actually--in my case they were less clearly stated as "predictions" and more like spontaneous outbursts from the reader. Impressive but rare.
I think this reading-on-demand stuff is likely to be 80% unreliable--even the most well-intentioned reader knits things together from her/his own imagination.
Somebody like Skye at California Psychics--or Rika--who are frequently are all over the place are more authentic I think.
When we invest our money in them, it's like paranormal research that may deliver zero useful info somedays, other days a few fascinating nuggets.
But NEVER the whole story--don't expect it! If you latch onto a timeline or storyline, you are likely latching onto fiction.