|
It's an interesting read, but it leaves out a lot.
For example, when they talk about "earth-like planets" they don't mean earth-like as in an earth orbited by a huge moon to keep its axis stable.
And all those planets with "hot" Jupiters that keep being detected, most probably wrecked any little planets that were originally there, whereas our Jupiter has been very benign in cleaning up solar system debris
And as for life and intelligence, the dinosaurs ruled the earth for over 160 million years, and it seems to have been an accident that they were wiped out. In that 160 million they never built a fire or displayed any intelligence.
And the article ignores Project Orion type nuclear space travel - at a tenth to a third the speed of light. Which makes the Fermi Paradox even more paradoxial.
Regards,
Renato
|