As we talked about before, there’s more substitution, especially from digital, than ever, and you’ve got a narrowing set of customers to be able to appeal to. So the great thing about that is there’s going to be more choice for a kid, and there’s going to be a higher cycle time. The bad thing from a business perspective is that it’s really hard to establish a moat, and the kids cycle through, and they learn about things in unpredictable ways. A lot of kids are exposed to social media, even though they’re not supposed to do it at an earlier and earlier age. They watch YouTube, they watch all these kinds of influencers, and the whole notion of Saturday morning cartoons or even just watching cartoons after school on a linear network has totally flipped upside down. So I think as a toy company, you have a choice: you can either double down on that market and try finding these big entertainment moments that really punch through, or you can try finding a different market to be able to appeal to and build a more durable moat in those spaces.
Part of the value of push-based systems is that each node only needs to keep track of its own dependencies and dependents, which makes analysing each node locally easy, but analysing the system as a whole hard. In the extreme case, you might dynamically create and destroy nodes in the tree depending on previous values — this doesn’t make sense for our spreadsheet analogy, but is essentially what’s happening with RxJS’s switchMap operator. Essentially, the more dynamism we want in our system, the harder it is to achieve efficient updates, and the more we want efficient updates, the more we need to specify our dependency graphs up-front.
2026-03-10 00:00:00:03014446510http://paper.people.com.cn/rmrb/pc/content/202603/10/content_30144465.htmlhttp://paper.people.com.cn/rmrb/pad/content/202603/10/content_30144465.html11921 中国电影节在马达加斯加开幕。新收录的资料对此有专业解读
return err(f"polygon needs at least 3 points, got {points.len()}");
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