At that point of time Dumbledore hasn't seen Harry or his scar, yet. Hagrid may have sent a short report, but no more.
My problem with 'Dumbledore knew immediately' is that the Harrycrux accident is an extremely unlikely occurrence. Nobody has ever made more than one Horcrux before; never has anyone made so many that his soul became so instable that a broken piece splits from the main soul by itself and manges to settle in something/someone else.
I don't deny that Dumbledore can have figured it out very early, after he saw Harry himself and thought a bit about it, but not at the time he told Severus that Voldemort will return.
Sionna_raven has made a brilliant point here. Dumbledore is brilliant, and, given time, certainly *did* figure out that Voldy is not gone for good. At the point, though, it was still too early for him to know everything that happened, so, as one very wise person told me, sometimes the simple explanation is the best.
So here it is. (it is not mine, but I am reposting it for the sake of having this question answered). Thank you, you brilliant person you, for this answer. *loves* :D
The simple fact is that there was no body when Voldemort was defeated. JKR is very careful to always say that Voldemort was defeated and not killed. That, plus, the fact that Harry has a cursed scar leads Dumbledore to conclude that Voldemort's power has broken, but that he isn't dead.
So, yeah, Horcrux Theory is long and insanely complicated (which denotes a person who had the time to sit down and think on it a while, not a wizard facing the disappearance of a dark wizard and a one-year-old child with a scar on his forehead in his wake.)
My problem with 'Dumbledore knew immediately' is that the Harrycrux accident is an extremely unlikely occurrence. Nobody has ever made more than one Horcrux before; never has anyone made so many that his soul became so instable that a broken piece splits from the main soul by itself and manges to settle in something/someone else.
I don't deny that Dumbledore can have figured it out very early, after he saw Harry himself and thought a bit about it, but not at the time he told Severus that Voldemort will return.
Sionna_raven has made a brilliant point here. Dumbledore is brilliant, and, given time, certainly *did* figure out that Voldy is not gone for good. At the point, though, it was still too early for him to know everything that happened, so, as one very wise person told me, sometimes the simple explanation is the best.
So here it is. (it is not mine, but I am reposting it for the sake of having this question answered). Thank you, you brilliant person you, for this answer. *loves* :D
The simple fact is that there was no body when Voldemort was defeated. JKR is very careful to always say that Voldemort was defeated and not killed. That, plus, the fact that Harry has a cursed scar leads Dumbledore to conclude that Voldemort's power has broken, but that he isn't dead.
So, yeah, Horcrux Theory is long and insanely complicated (which denotes a person who had the time to sit down and think on it a while, not a wizard facing the disappearance of a dark wizard and a one-year-old child with a scar on his forehead in his wake.)