What is Google blur?

Could you elaborate on the concept of "Google blur" and its potential implications in the realm of digital privacy and security? I've heard this term used in discussions related to data anonymization and image obfuscation, but I'm unclear about its precise definition and how it differs from other methods of privacy protection. Additionally, how might the adoption of "Google blur" by the search engine giant impact the general public's ability to access and use information on the internet?