During the Christmas break, Quirrellmort was able to get as far as the Verres-Evans garden, so if the protection is in place it extends at most to the physical walls of the house, which isn’t much—first, because Harry isn’t likely to stay secluded (and even if he swears to do so, his parents won’t, and while outside of Dumbledore’s authority he is susceptible to blackmail), and second, because there are probably sufficiently creative solutions to that little snafu (hijack and crash an airplane on the house? I doubt the Power of Love super-enchantment turned the building into an adamantium-darksteel nuclear bunker).
In general, canon wizards completely neglect Muggle artifacts when making their plans. canon!Voldemort could have done that at any time, enchantment or no. So it might just be a function of this Dumbledore not being stupid. (Of course, in this instance he thinks the pertinent threat is Harry being kidnapped for his blood, not killed, so there’s a different threat model there.)
True. What are the constraints on that sort of thing? If it were feasible to do so, would getting a DNA sample and cloning the requisite amount of blood work? (Or whatever you would do to generate blood. It probably involves marrow cells somehow.) Does there have to be some sort of connection between the blood and him? Does he have to be alive, or present, during the ritual?
You would need Harry’s stem cells, presumably from his marrow. Even with those, I doubt that Voldemort has access to the necessary technology, especially in 1991.
During the Christmas break, Quirrellmort was able to get as far as the Verres-Evans garden, so if the protection is in place it extends at most to the physical walls of the house, which isn’t much
In canon, it certainly doesn’t extend to Harry’s wandering about on the streets, which is a huge hole in the protection (making it necessary for the OotP to tail him whenever he leaves the house).
During the Christmas break, Quirrellmort was able to get as far as the Verres-Evans garden, so if the protection is in place it extends at most to the physical walls of the house, which isn’t much—first, because Harry isn’t likely to stay secluded (and even if he swears to do so, his parents won’t, and while outside of Dumbledore’s authority he is susceptible to blackmail), and second, because there are probably sufficiently creative solutions to that little snafu (hijack and crash an airplane on the house? I doubt the Power of Love super-enchantment turned the building into an adamantium-darksteel nuclear bunker).
In general, canon wizards completely neglect Muggle artifacts when making their plans. canon!Voldemort could have done that at any time, enchantment or no. So it might just be a function of this Dumbledore not being stupid. (Of course, in this instance he thinks the pertinent threat is Harry being kidnapped for his blood, not killed, so there’s a different threat model there.)
No-one’s said the blood has to be taken from his living body, though.
True. What are the constraints on that sort of thing? If it were feasible to do so, would getting a DNA sample and cloning the requisite amount of blood work? (Or whatever you would do to generate blood. It probably involves marrow cells somehow.) Does there have to be some sort of connection between the blood and him? Does he have to be alive, or present, during the ritual?
You would need Harry’s stem cells, presumably from his marrow. Even with those, I doubt that Voldemort has access to the necessary technology, especially in 1991.
Oh, he would do it by magic.
In canon, it certainly doesn’t extend to Harry’s wandering about on the streets, which is a huge hole in the protection (making it necessary for the OotP to tail him whenever he leaves the house).