Stanton Friedman has humorously and quite scientifically shredded the Drake equation. I think his doc doing so is on his website.
http://www.stantonfriedman.com
This is what turned up in a Google search:
http://www.v-j-enterprises.com/sfufovsseti.html
11. Why do SS focus on the Drake Equation which supposedly tells how many inhabited planets there are capable of sending radio signals? There is no evidence to support the many assumptions that are made and it takes no account of the processes most important for the distribution of intelligent life on Earth, namely migration and colonization. We have data on one planet in one solar system at the present time. We don’t even know how many civilizations there may have been here on earth 10 million or 200 million years ago. Heinrich Schliemann had to dig down 75 feet to find Troy dating from just a few thousand years ago. How much of earth has been explored that deep, no less the much greater depth that would be needed to tell us about civilizations that were lost due to asteroid collisions or nuclear wars or continental drift since hundreds of millions of years ago? One might just as well throw a dart at a dart board with numbers on it.
http://www.v-j-enterprises.com/sf-ufo-why3.html
7. WHY do you say SETI stands for Silly Effort to Investigate?
...Look carefully at the Drake Equation, their Holy Grail. We have no way to determine the lifetime of a civilization, or the fraction of planets that have intelligent life or that develop technology. We have data on one “civilization” on one planet in one solar system. Real scientists don’t extrapolate or interpolate from one data point. The SETI people omit colonization and migration which could greatly lengthen the life span of a civilization. That is pseudoscience, no matter how many degreed professionals are involved. Admittedly, their job security is dependent on nobody coming here.
Hey Quix! Long time no “see”. I looked on Stanton.s website but couldn’t find the article you mentioned about him “shredding” the Drake Equation. Do you by any chance have a link to that article?
I, personally, have always thought that the so - called Drake Equation was nothing more than a W.A.G.