Billboards are pretty helpful.  They often tell me I can get food by taking the next exit.  Someone might be pulling out their phone while driving instead, because the only alternative is to pull over first.  Affecting the equilibrium might have obvious consequences.<p>Are you sure the prevalence of bullshit isn&#x27;t healthy?  If there weren&#x27;t so much bullshit, you&#x27;d be less immune to it when it matters.  Seeing the wrong kind of doctor after being diagnosed with cancer, for example.