&gt; I think human nature is to ignore advertising, and block it out.<p>If that was the case, advertising wouldn&#x27;t work, and companies that engaged in more advertising would be burning money without improving their competitive position. Advertising would be a net harm to the business doing it, and businesses would soon learn that <i>not</i> advertising was an easy way to slim down costs without hurting revenue, leading to the rapid and inevitable demise of the advertising industry in all media.<p>That this has <i>not</i> occurred suggests to me that human nature is <i>not</i> to block out advertising, whether or not it is consciously noticed and easily subject to intentional recall.<p>&gt; Quick: What&#x27;s the last ad you saw before going to this website?<p>An online ad for Civ 6; I remember clearly because it made me recall the speculation I&#x27;ve been making recently that there is a mechanism recently that is <i>overtargeting</i> ads (both personally and temporally), because rather than getting ads for things that I might be interested in, I&#x27;m seeing a lot of ads for things I&#x27;ve <i>just</i> thoroughly explored.