I read this trying to keep as open a mind as possible, and I think there is SOME value to SOME of what he said (ie no two experiments are totally the same and replicators often are motivated to prove the first study wrong)... But one thing that really set me off is that he genuinely considers a study that doesn't prove its hypothesis as a failure, not even acknowledging that IN PRINCIPLE, this study has proven the hypothesis wrong, which is valuable knowledge all the same.
Which is so jarring with what I consider the very basis of science that I find difficult to take Mitchell seriously.
Well, I may have read too much into this statement, that's true. I always assumed that Dumbledore conveniently "going to the Ministry of Magic" on a broomstick or with a Thestral (and not using one of the million other possibilities such as Floo Powder, Portkey, Apparating), then SUDDENLY realizing halfway that Hogwarts is where he ought to be were meant to signify the adult reader that, unlike what Canon!HP understood, Dumbledore knew all along and was trying to trick Voldemort/Quirrel into trying to get the Stone (which was safe inside the mirror of Erised). It also explained the perfect timing of Hagrid and Harry retrieving the Stone from Gringotts the exact same day Quirrel/Voldemort broke in. The Stone had in my opinion been a bait all along, to try and catch the Dark Lord while waiting for the Chosen One to be old enough to defeat him.
THIS. Although I`m unsure about the particulars you mention here, being an European, people and effective altruists need to realize that your job is INSIDE the world you live in. Estimating how much good you're producing is not just about how much money/time you're giving to effective charities, but also how much your way of life is helping/damaging the world.
Well, so much for that !