4 ms·
But that's the beauty of this calculation it just takes one splinter group of one splinter group and they could easily populate the whole galaxy in under 10-100
by the6threplicant 8y ago
But that's the beauty of this calculation it just takes one splinter group of one splinter group and they could easily populate the whole galaxy in under 10-100 million years - which, being the conclusion that Fermi found, is nothing at the time scales of when our galaxy was formed.