I am worried that someone will actually try this sometime and it will turn out not to work, either because MWI is wrong or because the destruction of the universe was incomplete — for example, collapsing the false vacuum would merely change the state of the things in the universe, not destroy the universe <i>per se</i>.<p>Fortunately, we don&#x27;t have any currently promising avenues for nucleating a true vacuum or anything like that, so this algorithm is purely theoretical.<p>For now.