You can limit that with different legislation though - the data-sharing and processing parts would do this, without the additional level of explicit consent whi

You can limit that with different legislation though - the data-sharing and processing parts would do this, without the additional level of explicit consent which is the stumbling block (requiring scale). I'm not advocating in favour of tracking, but the effects of enforcing collecting explicit opt-in consent appears to be centralising power, rather than getting rid of the industry. I'd rather have implicit consent across multiple providers (with processing safeguards and data sharing agreements stating they're only pooling the data amongst their advertisers), than explicit consent with only one behemoth.