Without actually digging into it, I would assume that nytimes loads js assets from a third party, that's the direct nodes from the center. The size of the more

Without actually digging into it, I would assume that nytimes loads js assets from a third party, that's the direct nodes from the center. The size of the more is the size of the js asset. That third party then injects yet another script onto the page. The next connected nodes represent these scripts and their size. And so on and so forth. These scripts ensure to the advertiser that their ad is actually being shown. The advertiser doesn't trust the hosting page to correctly display their ad, so the ad injects their own tracking script. That tracking script injects their dependencies. Thus this madness.