The post discusses BPS (Broadcast Positioning System), an experimental GPS alternative aiming to provide more reliable location and timing services, especially in areas where GPS is susceptible to jamming. While BPS currently has limited deployment, the overall concept revolves around the creation of a mesh network through broadcasting towers to establish independent timing services. Potential advantages include better coverage indoors and resilience against jamming compared to GPS. The implementation will likely depend on the successful rollout of the ATSC 3.0 standard, which faces various challenges. The discussion highlights ongoing technologies such as eLoran that could further support GPS-independent operations in the future.