 Individuals also form a filter bubble of like-minded people who hold a similar belief structure, decreasing the amount of dissonant information they are likely to encounter.Public engagement with science can have further unintended (but often unmeasured) consequences like the "backfire" effect,  for example when engagement activities to sensitive people about antibiotic resistance leads them to start selling the same medicine without prescription.The following intrinsic and extrinsic constraints of public meetings can lead to unexpected a misrepresentation of the overall public's opinions