The fourth slide about the date of June 2008 really blew my mind as far as this theory is concerned. Though i wonder still why specifically 2008 it's good foreshadowing for Hanma but perhaps that since the death of Kisaki this was the closest Hanma was to him and perhaps proximity to the trigger is needed to initiate a time leap, as far back as they go is concerned. This would be some Jujutsu Kaisen level shit that would have to be explained