I think you're oversimplifying the issue.

First, we don't know how long it'll take Harry to revive Hermione. Given the fact that he's made a couple of completely groundbreaking, paradigm-shifting discoveries within a year of being introduced to magic, we have no possible way of predicting how long he'll take to achieve this particular breakthrough. Our own knowledge of magic, of Harry's potential, and of what resources might become available to him in the future, is insufficient to model him in this much depth.

Second, people mature at very different rates depending on their circumstances. Typically, more challenging circumstances make for greater maturity, as long as the person doesn't break down altogether. Being revived after getting murdered and a time-skip has the potential to make Hermione mature a great deal very fast (though she probably won't enjoy it).

Third, Harry's own maturing process so far seems rather non-standard, with rapid growth in some areas and a striking lack of it in others. Again, it is very hard to model what he will become as time goes by, especially given the number of significant character-shaping events that keep getting thrown at him.

Fourth, there is such a thing as friendship across maturity levels. It won't be the same as it was before, but really, we already knew that. Too much was happening to these two from the start for their friendship to maintain any one static form, both in terms of having to respond to external events and in terms of having to learn to deal with each other's somewhat alien ways of seeing the world.

Fifth, what joke is on Harry? He's Harry James Potter-Evans-Verres and his best friend is dead. He's doing it because it's the right thing to do and because she, in particular, matters that much to him, not because he expects things to go back to the way they were.

Oh Harry...this is Lord Kevin's path.

I'm worried about our boy. He's becoming a parody of himself. I've been concerned ever since Hermione's death, and now I think I have to declare myself persuaded by Quirrel's concerns.

Harry needs to grieve for his friend, accept her passing, and move on.

I don't quite get it. Why are children making all these announcements, and not a member of the faculty or the Board? Why is Susan Bones giving orders to an Auror? (And why is nobody rolling their eyes at all the trying-to-be-cool?)

And the acid from the previous chapter.

I thought the twins, beyond playing pranks, were not above selling magical trinkets and stuff to fellow students, thus making a bit of profit and so not being completely selfish. Or was it in canon or some other fanfic?

That uses the word "moral", which is well known to hide many mysteries. After fissioning someone, how would you judge if your prediction was right or wrong?

I spend time worrying about whether random thermal fluctuation in (for example) suns produces sporadic conscious moments simply due to random causal structure alignments. Since I also believe most potential conscious moments are bizarre and painful, that worries me. This worry is not useful when embedded in systems one, a worry which the latter was not created to cope with, so I only worry in the system two philosophical curiosity sense.

That uses the word "moral", which is well known to hide many mysteries. After fissioning someone, how would you judge if your prediction was right or wrong?

I think "numerically identical" is just a stupid way of saying "they're the same".

So now we have

Open individualism is the view in the philosophy of personal identity, according to which there exists only one person, which is all persons that exist, have existed or will exist.

Now taboo "person".

(You're allowed to reword my above definition if you think I've got it wrong.)

Currently learning Java by-the-book from "Starting Out With Java: From Control Structures Through Data Structures" second edition. It's a remarkable book, unlike any of the ones I tried reading before. It explains every minutiae of the example code and leaves very little to the imagination, except for when it has the courtesy to explicitly tell the reader to ignore it for the time being, something that a lot of guides fail to do. This somewhat pads the book out when it explains when a method-call has occurred two chapters after method-calls were explained (it's 1300 pages long), but the reinforcement is greatly appreciated and I actually saved time by not fumbling around wondering how the heck dealershipOne.getCar("Pinto").setYear(dealershipOne.getPolicy().getYear()) worked, even though I technically knew how argument passing and dot operators worked. The pages on which the exercises are printed are even differently coloured from the rest of the book, its structure apparent at the cosmetic level.

I've decided to accumulate the knowledge from to back, because I find I'm too fidgety and impatient when I try to pick and choose chapters, and have gotten through about 50 pages in the last 3 days. I'd recommend it for the textbook thread, but I found other textbooks too unbearable to read past the first chapter , so I'm not technically qualified.