Responding to various people who have suggested that if the vow had some particular meaning: Harry might think of ways to get out of it or to get around it: This is not a thing-that-Harry-Potter-Would-Do. The only reason for trying to get out the vow would be in order to allow for the possibility of risking the destruction of the world (whatever this means), and the vow prevents Harry from allowing this risk. So it would directly prevent any attempts by Harry to get out of the vow, including attempts to get others to set up a dead man’s switch or whatever.
This also implies that his Vow did in effect modify his terminal goals, as some have already suggested.
Responding to various people who have suggested that if the vow had some particular meaning: Harry might think of ways to get out of it or to get around it: This is not a thing-that-Harry-Potter-Would-Do. The only reason for trying to get out the vow would be in order to allow for the possibility of risking the destruction of the world (whatever this means), and the vow prevents Harry from allowing this risk. So it would directly prevent any attempts by Harry to get out of the vow, including attempts to get others to set up a dead man’s switch or whatever.
This also implies that his Vow did in effect modify his terminal goals, as some have already suggested.