An availability cascade is a self-reinforcing cycle that leads to the development of collective beliefs when a simple, plausible idea gains traction in public discourse. As individuals adopt this idea due to social pressure and its perceived validity, it creates a chain reaction where more people begin to embrace it, often without critical examination, simply because others are doing so.
During the early years of the HIV/AIDS epidemic, advocates like C. Everett Koop worked to raise awareness, prompting a widespread belief that the disease warranted more attention. This availability cascade led to significant public campaigns and funding, despite initial skepticism regarding the disease's urgency.
To overcome the availability cascade, individuals should critically evaluate new ideas rather than simply accepting them based on popularity or social pressure. Engaging in independent research and seeking diverse viewpoints can help mitigate the influence of this bias.