Google's overhaul of the search bar this week washes away one of the last vestiges of the internet's halcyon era — when search tools felt empowering, social media and swiping were novel, and popular disillusionment had yet to set in. Why it matters: The AI era and the TikTok-ification of social media have produced a digital world that's responsive to the market demands of today and unrecognizable from a decade ago. In heralding the "biggest upgrade to our Search box in over 25 years," Google acknowledged that search was a model of the past and that its core product had to be more aligned with the AI age. The blue links that colored the Google user experience for decades have been demoted to a secondary offering as zero-click answers get top billing. Publishers , SEO firms, affiliate marketers and review sites built around Google traffic are now fighting for visibility in a search experience that delivers fewer clicks.…