UFO / UAP

Fuel? If only the universe was filled with huge balls of Nuclear fire... back to the drawing board, I guess... oh wait it is.
Diving into suns for fuel is a bold approach. I haven't heard of that one before. Diving in for mass to build megastructures yes, fuel no.
 
Voyager would take 75,000 years. The parker solar probe is technically faster but only at the bottom of the gravity well. It doesn't even make escape velocity. Anything that hasn't reached solar escape velocity doesn't really count for achieved speed imo.

But Alpha Centuri is not believed to have any habitable candidate planets, you've got to go further for that.
Who is talking about 1970s Tech? Go back to the problem statement. If you are genuinely interested you will see that NASA has spent quite a bit of time and money working on propulsion, theory to get man kind to the next habitable planet in a life time. Now imagine a species that developed on a slightly better version of earth with slightly different goals. Its not beyond impossible to imagine a species that is 200 years or even a 1000 years ahead of us, in a universe that is at least 15bn years old.
Diving into suns for fuel is a bold approach. I haven't heard of that one before. Diving in for mass to build megastructures yes, fuel no.
If only there was a way of turning that light energy into electricity.. Someone needs to get on that.. oh wait they already did.
 
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Who is talking about 1970s Tech? Go back to the problem statement. If you are genuinely interested you will see that NASA has spent quit a bit of time and money working on propulsion, theory to get man kind to the next habitable planet in a life time. Now imagine a species that developed on a slightly better version of earth with slightly different goals. Its not beyond impossible to imagine a species that is 200 years of even a 1000 years ahead of us in a universe that is at least 15bn years old.

If only there was a way of turning that light energy in to electricity.. Someone needs to get on that.. oh wait they already did.
Solar power is great but that's not reaction mass and it's **** when you're any distance from the Sun. It's not a credible energy source at all. Check your own references, NASA goes nuclear as soon as you're thinking about going extra solar. The tyranny of the rocket equation lives on.

Nuclear pulse propulsion could in theory get you up to a measurable % of light speed. Ion thrusters can't even in theory. I agree that nuclear powered probes could in theory crisscross the galaxy, but they haven't. See the Fermi paradox.
 
What you are trying to convince yourself of, is the possibility. Not proof it has happened.

chances of us being the only life, ever in the universe - very highly unlikely.
chances of life existing elsewhere now - very likely
chances of them being substantially more advanced, perhaps able to live longer and more adapted to space travel?

- why not?

It is after all very, very big and its been around a while.

That is not to say they have been sighted and visited us. But the possibility is there.

did you read this ?
 
Y'all still looking at the problem through the wrong end of a telescope...


31:16 'The Theory of Everything' ("-Everywhere... all at once.")
 
What you are trying to convince yourself of, is the possibility. Not proof it has happened.

chances of us being the only life, ever in the universe - very highly unlikely.
chances of life existing elsewhere now - very likely
chances of them being substantially more advanced, perhaps able to live longer and more adapted to space travel?

- why not?

It is after all very, very big and its been around a while.

That is not to say they have been sighted and visited us. But the possibility is there.

did you read this ?
I did, it's a perpetual motion machine caused by experimental error. That's why NASA hasn't funded it.

The solar system might have been visited by Alien intelligences, but the idea they're loitering around or they interacted with us in a meaningful way is laughable. Again not zero but so unlikely its astronomical.
 
and this book is worth a read:
 
and this book is worth a read:
To quote homer Simpson, "In this house, we obey the laws of thermodynamics!"

It may be worth a read but most of the new physics proposals fall short. Woodward effects have so far failed any experimental validation.
 
Scientific failure is not a waste of time. There is plenty of work being done on so called reactionless drive. Again, just because we don't know how to do it, doesn't make it impossible.

Then you have Tachyon theory. I'm certainly not closing my mind to the fact that someone may make a breakthrough in the next 50 or 100 years and I am not closed the idea that some "thing" else in the universe is a few pages ahead of us or even a few books ahead.
 
No one is saying that it is.


What people are saying though is that, in






there's no great likelihood of them being anywhere near here.
I'd say the opposite, based on what we know they should be here and obviously so. But they aren't.
 
I'd say the opposite, based on what we know they should be here and obviously so. But they aren't.

Correct me if I'm wrong, but your position is dependent on life being common, and also coinciding with us, temporally.

If you take humanity as having been "aware" for a few tens of thousands of years, and being typical of life elsewhere, the chances decrease markedly.

And not hiding, of course (see my earlier post on this).
 
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Correct me if I'm wrong, but your position is dependent on life being common, and also coinciding with us, temporally.

If you take humanity as having been "aware" for a few tens of thousands of years, and being typical of life elsewhere, the chances decrease markedly.

And not hiding, of course (see my earlier post on this).
Yes. Broadly speaking.

But it doesn't require it to be that common, it relies more on the power of technology. Unless sentient races wipe themselves out before they get much more advanced than us then we should be seeing signs of them.
 
Y'all assuming an alien culture isn't xenophobic.
'Andromeda First'; that sort of thing.
 
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