The exponential lower bound of the form (5/2)^(n/4-1/2) for the number of circuit double covers (CiDCs) in bridgeless cubic planar graphs is a significant result, but whether it is tight remains an open question. The current bound is derived from a combination of techniques, including the use of linear programming and the analysis of specific graph structures, such as 4-cycles and 5-cycles. While the bound is robust, there is potential for improvement, particularly through the exploration of additional graph properties or more refined combinatorial techniques. Future research could focus on identifying specific families of planar graphs that might yield higher counts of CiDCs or leveraging advanced counting methods to refine the existing bounds. Thus, while the (5/2)^(n/4-1/2) bound is a strong starting point, it is not definitively tight, and further exploration could yield better results.