Cosmopolitan Culture: Difference between revisions
From Cibernética Americana
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 4: | Line 4: | ||
==Once== | ==Once== | ||
we are no longer concerned about the | we are no longer concerned about intelligent life in counting the those worlds which could support it a reevaluation of the Drake equation causes the next to last two parameters to drop out and the last to be taken as the period during which it a world would be amenable to that role, taken for example as 1 billion years giving: | ||
:''N'' = 7 × 0.5 × 2 × 0.33 × 10 <sup>9</sup> = roughly a billion worlds | :''N'' = 7 × 0.5 × 2 × 0.33 × 10 <sup>9</sup> = roughly a billion worlds | ||
