There's a podcast available via BBC Sounds called "The Premonitions Bureau". Someone tried to collect premonitions/precognitions and find out just how accurate they were in terms of news events which subsequently happened. This followed on from a number of reports of people who had experiences of precognitive dreams or visions of the Aberfan tragedy. It's a fascinating podcast. Cutting to the conclusions - there were very, very few people who were able to foretell future events (but those who did were uncannily accurate), and there is a huge question around what use this information is. If you could prevent the event from taking place, what exactly was the premonition? And if you can't, because there's insufficient detail to do that (which is the most frequent situation) then what use is the premonition? I have had dreams which portrayed a very odd, but very vivid, event, and later seen news footage which showed precisely what my dream had shown, but the dream was imprecise about date, location and all other details, so of no practical use at all.