Thank you for pointing out my confusion. I've lost confidence that I have any idea what I'm talking about on this issue.

You point out that there are acts easily agreed to be evil and acts easily agreed to be good, but that doesn't imply a definable boundary between good and evil. First postulate a boundary between good and evil. Now, what is necessary to refute that boundary? A clearly defined boundary would require actions that fall near the boundary to always fall to on side or the other without fail. Easily, that is not the case. Stealing food is clearly evil if you have no need but the victim has need for the food. If the needs are opposite, then it is not clearly evil. So there is no clear boundary, but what would a vague boundary require? A think a vague boundary requires that actions can be ranked in a vague progression from "certainly good" through "overall good, slightly evil" and descend through progressively less good zones as they approach from one side, then crossing a "evil=~good" area, into a progressively more evil side. I do not see that is necessarily the case.

The present debate is not how he can fulfill his obligation. They are arguing specifically if Harry made a justified investment by paying such a high price to save Hermione's life. It seems conclusive that the pure monetary investment is actually sound, he can directly gain the money he invested back at a decent rate even besides the additional benefits of rescuing her.

It's a real disorder If that's what concerns you. But if you're asking "why use that excuse to exclude Harry from public school and give him a time-turner at Hogwarts? Is there a logical progression that definitively gives Harry a reason to have such a disorder?" I had never considered that.

Sure "National D. A. R. E. Day" means that the politicians who created the day believe that drugs exist and likely they regard them as bad. That D. A. R. E. actually exists means there is a wide community of people that believe or act like they believe likewise. If this was the ONLY evidence of drugs existing I would have reason to be skeptical of the existence of drugs.

Really most any single artifact of a wide phenomenon, taken completely in isolation, would be only weak evidence of the phenomenon's existence. Drugs, Jesus, Dark Wizards, Ghosts or Gravity, I think if we only saw one of the many effects that each predicts then we would have a good reason to doubt the reality of the phenomenon. Therefore I now believe it was unwise of me to take your comment that singled out one artifact of the Voldemort phenomenon (the holiday) and point out that taken by itself it was not strong evidence of his existence. Looking at it now, my comment appears to have the structure Daniel Dennett calls "a deepity": in so far as what I said was true, it was trivial and in so far as what I said was profound it was false.

A national holiday merely indicates that whatever system institutes holidays (in this case the government of magical Britain) has been convinced there is cause for a holiday. I consider this to be rather weak evidence.

For example in the United States the 2nd Thursday in April is "National D.A.R.E. Day" but this doesn't convince me that the D.A.R.E. program does more good than harm. (though it may)

If there were a national holiday celebrating his death and no other evidence I would not have enough information to judge Voldemort's life.

Thank you, that makes it very clear.

I'm afraid I can't spot it. Could you point it out for me?

That evidence is about as convincing as Christmas convinces me Jesus did something good.

However, because the figure Voldemort is not historical but a very recent event practically everyone in the wizarding world affirms to have existed and have been responsible for murders, then we have to choose between the alternative theories that practically the entire wizarding world has been deluding into believing the false story of the Dark Wizard Voldemort or else there was some Dark Wizard Voldemort.

My assessment is that it is more probably Voldemort existed, and was responsible for evil deeds.