naturalplastic wrote:
The short answer is YES! I'm sure they exist but they are so few and so far apart in space AND in time that sapient species of different solar systems usually go extinct before they ever encounter another sapient species from another solar system. So they may exist-but for practical purposes they dont exist. And we likely will never encounter any.
Am very skeptical about UFO's etc.
There is a numerical fact, that if a truly intelligent species is in our galaxy, they likely have maid contact with us.
Our planet is 4 billion years old give or take a 100 million years.
It's likely that if a species is 1000 year ahead of us technologywise , they have developed some kind of space travel.
with a give or take 100 million years ahead of us, they had plenty of time to span life out into the galaxy.