To be clear, I'm not arguing they'd become advanced. I'm arguing they'd never become advanced. I think the Drake Equation solution that Sagan proposes puts val

To be clear, I'm not arguing they'd become advanced. I'm arguing they'd never become advanced. I think the Drake Equation solution that Sagan proposes puts values that are orders of magnitude too large for most variables. In this case fi (where he confuses intelligent life with civilization) and fc.