Did you even try to understand the paper? They rightfully point out the uncertainty in estimating even the order of magnitude in the Drake equation, then build

Did you even try to understand the paper? They rightfully point out the uncertainty in estimating even the order of magnitude in the Drake equation, then build a model on uncertain, if not completely speculative facts including the Kardashev civilization model, and the validity of the "Fermi observation," which is in fact being debated in this very thread.