In the "Coral Model" of galactic colonization, if we assume that colonizing ships can travel at a few percent of the speed of light, then we might expect all of the habitable planets in the galaxy to be colonized within a few
A) tens of billions of years
B) billion of years
C) hundred thousand years
D) tens of millions of years

Question

Quizplus · Accepted Answer

The "Coral Model" predicts that once colonization begins, it will spread exponentially and efficiently throughout the galaxy. With ships traveling at a few percent of the speed of light, it is estimated that all habitable planets in the galaxy could be colonized within tens of millions of years. This is a relatively short amount of time in the context of the age of the universe.

In the "Coral Model" of Galactic Colonization, If We Assume