I'm not saying that charter schools can never be an improvement, there's probably very few changes to anything for which that can be confidently said, since sometimes systems and organizations get so mired in dysfunction that even a change that's, on paper, for the worse provides the needed stimulus to improve things.

I'm saying that people make claims about the systemic superiority of charter schools that, under examination, don't hold up, and it doesn't make sense to direct extra funding to schools that are already getting better results by making their own job easier. For that matter, many (certainly not all) of the "best" public schools are benefiting from a similar phenomenon, which is exactly why California has its complicated redistribution funding scheme, to avoid rewarding schools with an easy job and punishing schools with a harder job.

And people love to come into a system that they don't understand, regurgitate the most naive, obvious approach that we have specifically moved on from because these systems aren't actually that simple, and think they solved the problem: "What if we rewarded success?" Wow, what a genius, nobody's ever thought of rewarding success, let's call the NYT, let's call the Nobel committee, you've finally solved education, thank god we have you since nobody has ever thought of giving more funding to schools that are already doing well by taking it away from schools with struggling populations. Thank god we have someone here to tell us that we should financially incentivize good metrics, maybe you can solve American health care next, and possibly, if you can find the time, you could address world peace after that.

I don't know, was there? Do you have a link?

I believe the evidence claimed is that there aren’t better outcomes for smart kids. Schools that claim they have better outcomes just selected for kids that would always have better outcomes. Like if I claimed my basketball team has better outcomes because I got to make sure all my players were above 6 foot. These 6 foot players don’t necessarily benefit from being in a team with other 6 foot players, but I’m saying people should apply for my team because I’m doing so much better than the team that can’t make those weeding out decisions. I’m intentionally conflating the success of my capacity to select for success with my capacity to coach a team.

It’s not actually that unpopular; there are plenty of gifted programs, though the tide has turned to controversy around them more in recent years.

I continue to believe that gifted kids are special needs kids, and that they shouldn’t be in the same classroom as those who are struggling for all of their classes.

People don’t like to talk about gifted kids, except to imply that being “too smart” is somehow bad or unfair, and I think it does them a disservice.

Gifted kids get very, very bored, and lose interest quickly, when they aren’t challenged.