&gt; eventually two black holes will merge ... as the two BHs circle each other closer and closer<p>I&#x27;ve heard this so many times, and I still don&#x27;t see how it&#x27;s possible! Because of time dilation this merger will take infinite time.<p>No one has ever explained this satisfactorily to me. Why do people just seem to completely ignore relativity when dealing with black holes?