> if we add more 9s, is it possible to reduce that number to within a human lifespan? Yes. At 99.99999999% of c it would take 35 years from the perspective of

> if we add more 9s, is it possible to reduce that number to within a human lifespan? Yes. At 99.99999999% of c it would take 35 years from the perspective of the traveler. However, an observer on earth will still see it taking 2.5m years.