Ubiquitous spyware in everything we interact with, in order to make ads, on average, 5% more efficient—juuuuust enough more efficient that having a stream of massive-scale spyware data is necessary to compete in the ad sales market. Totally a good trade-off, making all the world's computing adversarial so ads work slightly better.

When adblocking software becomes indistinguishable from stealth technology.