having not read all of the books should not stop him.
That's not true. Without exhaustive knowledge of canon, there's no way to know whether a given detail is specified at all or not. For example, Eliezer may not have realized that Harry and Draco's experimental results should have been outright confusing given the canon-available information on inheritance.
why is Peter Pettigrew as Scabbers stupider than the rules of Quidditch, for example?
This much at least makes sense to me. Scabbers!Pettigrew requires one person to have done something ridiculously stupid, all on his own. Quidditch is a group error, the kind that can accumulate insidiously from an initially reasonable state and linger for a long time even when every member of the group would have been smart enough not to initially make the error that they're all propagating.
Without exhaustive knowledge of canon, there's no way to know whether a given detail is specified at all or not.
That's a good point. We can only hope that mistakes will be obscure.
Eliezer may not have realized that Harry and Draco's experimental results should have been outright confusing given the canon-available information on inheritance.
But that's just DidNotDoTheResearch. One obvious source of information begins (and has begun for some time) with the most relevant quotation.
...Scabbers!Pettigrew requires one person to have done something ridic
ETA: There is now a third thread, so send new comments there.
Since the first thread has exceeded 500 comments, it seems time for a new one, with Eliezer's just-posted Chapter 33 & 34 to kick things off.
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