The Fermi paradox asks why evidence of extraterrestrial Intelligent Civilizations (IC) with the ability to communicate has not been observed if the galaxy is abundant with habitable planets. A four-step quantitative framework was developed that extends the Drake equation by incorporating pre-biological (galactic/star/planetary), biological, temporal, and detection bottlenecks. The first step estimates conditional probabilities for: the Galactic Habitability Zone (GHZ), pre-planet stellar environment, long-term planetary HZ, planet habitability, and long-term climate/chemistry. The result was ~58,000 habitable planets in the Milky Way galaxy over cosmic history. Step two applies Carter’s hard-steps model to estimate the probability (P) of intelligent life emerging within a ~5 Gyr habitable window. By adopting seven evolutionary steps with characteristic timescale of 1 Gyr, the model yields P ~ 0.095. Thus, ~5,500 IC existed in the Milky Way over cosmic time. Step three incorporates temporal overlap using a civilization lifetime of 10,000 years and an effective galactic lifetime of 5 billion years, reducing the expected number of contemporary IC to ~0.011 or effectively zero. Step four calculates radio detection limits based on a 12,000 Lyr radius, restricting detection to 6% of the galaxy. Thus, the absence of confirmed radio contact is consistent with the combined effects of habitability constraints, IC evolutionary timescales, temporal non-overlap, and detection limits. This is true even when significantly more optimistic assumptions prevail. Under this framework, the lack of observed signals does not constitute a paradox but rather an expected outcome.