[zb3]

Are you sure that's because of online ads? (which I don't see due to ad blockers)

> There’s a reason the advertising industry exists.

I think we'd need to pause online ads to understand their true effect.. I know people buy things, but attributing these choices to the fact that an ad was displayed to the same user some days ago doesn't sound reliable to me.

[forthefuture]

They track click through rate. Anyone spending money on advertising knows exactly what their ROI is. Online advertising is by far the easiest form of marketing to track.