Lets say you ever find yourself in a position where you’re so horrified by the lack of integrity and dignity - not just in existence here but existence across all planes that you really get the sense that it’s a hell without end with only varying shades of misery and no bottom-line truth to be found anywhere, forever, since anything that literally exists is bound to it’s own necessity and thus perpetual lying or needing to economically stab up anyone whose not you if you don’t want to be subjugated by society (ie. become a millionaire to retire early so the guy down the street can’t pay for his kid’s cancer or diabetes medicine). You’re horrified that this world of cannibalism exists at all. You’re horrified by the inescapable nature of Darwinian game theory and all of the Moloch traps and that all of it’s a fundamental feature rather than a bug. You’re horrified at the moral character of something, whether God, Source, Eheieh, Atman, etc. that would create a raft of lies tied together with genocide where truth is for the dead and psychopathy is for the living (or at a minimum truth is for people where even if they have kids they’re kids will be outbred, dominated, and enslaved by those who saw no truth and only Darwinian fitness payouts - what Dawkins would call ‘pure replicators’ or what a lot of people would refer to as r selection).
Lets say you actually, in this case and after watching enough NDE videos and a mishmash of excuses for this so incongruous as to virtually prove as above so below in regard to corruption, decide that David Benatar’s antinatalism isn’t enough - that you’d really like all of your incarnations deleted from all of past present and future timelines - doesn’t matter if you’ve already lived one, ten, one hundred, one million, infinitely many, or whether they’re all going on at the same time - fuck all of them - you’d really like to take an action that multiplies that number by zero. You’d genuinely like to smack God, grab his/her/it’s eraser, and undo your higher self ever having been created - and spit in God’s face right before you do it for good measure, better yet call him a fuckup for having created you and even recommend that he slit his own wrists and spare existence the suffering of his stupidity and moral cowardice.
Is it possible? Are there even rumors that it’s possible?
The only hydra I can think of where if it was deleted could delete the person and all of their incarnations from the hypergraph / block universe / whatever is the complete annihilation of their higher self. That may be the wrong structure to look at but it looks like a promising starting point.