Quote:
Originally Posted by troutman
He's living in the proverbial human bubble, only 100 years ago it took man over a month to go from Toronto to Hong Kong, now it's possible to do it in 5 hours.
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You chopped off the rest of the writer's statement:
The problem is that the stars are fantastically far away. If our Sun was the size of a basketball (instead of 864,000 miles across), Earth would be a small apple seed about thirty yards away from the ball. On that scale, the nearest star would be some 4,200 miles (7,000 km) away, and all the other stars would be even farther! This is why astronomers are skeptical that aliens are coming here, briefly picking up a random individual or two, and then going back home. It seems like an awfully small reward for such an enormous travel investment.
The laws of physics are consistent across the universe, not just inside this "human bubble".