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> Why would you go through the effort and uncertainty of unting wildlife when you can just saunter down to the local grocery store and pick up prepared meat? B
by jussij 17y ago
> Why would you go through the effort and uncertainty of unting wildlife when you can just saunter down to the local grocery store and pick up prepared meat?
Because, to use your analogy, that would be like the aliens living in New York, but doing all their shopping at a local grocery store located in London.
The distances to these far of galaxies are measured in the hundreds of millions of light years, if not further.
- phr 17y agoI think your scale is off a bit. I'm not sure what "these far off galaxies" refers to, but according to this Wikipedia page: http://en.wikipedia.org/wiki/List_of_nearest_galaxies all the local group galaxies are within 10 million light years of Earth. For that matter, some of the "life is everywhere" theories assume many space-faring civilizations within our own Milky Way galaxy, which is only(!) about 100,000 light years across.
- jussij 17y agoWith a univers estimated at some 4 billion light years in size, I choose 100 million light years as a ball park figure. But lets assume these aliens are in fact our neighbours and live just a million light years away. If they are planning to pop over for a visit, it's going to take them a very long time to get here. Unless of course Einstein is wrong and in reality it is possible to travel faster than the speed of light.