As a child I'd do it for years at a time. More like long term interests. As an adult I have short bursts of phases
I'm currently very absorbed in Fred and Rose West
know far too much, watched every document and podcast etc about it all. For some reason I heard about them, looked them up and then became absorbed by the information
Similar happened when the Queen was dying. Sudden very intense interest in the royal family
Not sure why I do this. It's very distracting and I often can't think of anything else for days whilst I'm in this hype focused mode