(October 6, 2019 at 7:35 am)Gawdzilla Sama Wrote:

(October 6, 2019 at 7:28 am)BrianSoddingBoru4 Wrote: Not sure that makes a difference.  Relative technological levels don't necessarily have anything to do with invasion for resources.

Boru

The idiot aliens in "Independence Day" sailed past the ice rings of Saturn to steal our precious fluids.

Brilliant!  I wish I'd thought to base my own argument on plot holes in a 20 year old film.

Boru

Point





You

(October 6, 2019 at 6:50 am)BrianSoddingBoru4 Wrote: 'Wot ho, Cyril - what about invading India, then?'  'Nah, Clive.  They're at a lower technological level than us, they've got nothing we'd want.'

Boru

If these boys were to discover how much water we have;
Then-We-Are-Fucked.



Or mebbie not. Arrakis orbits the star Canopus which is ~300 light years from Earth, they would need a mighty telescope to spot a water world at that distance.

Water may indeed be a valuable resource for an interstellar spaceship, growing petunias or whatever but as a reaction mass for a propulsion system then that is one piss poor starship drive they have.
An interstellar drive system must use some sort of ion/photon/plasma drive and that wouldn't need much water.
Other than water what does planet Earth have that they can't find in the millions of planets much closer to their home world?

But then again, I could be talking shite.

(October 6, 2019 at 7:35 am)Gawdzilla Sama Wrote:

(October 6, 2019 at 7:28 am)BrianSoddingBoru4 Wrote: Not sure that makes a difference.  Relative technological levels don't necessarily have anything to do with invasion for resources.

Boru

The idiot aliens in "Independence Day" sailed past the ice rings of Saturn to steal our precious fluids.

They must have been commies

The Valks:
I see actual evidence that they’re anally probing rednecks.

Isn't this how Eric Hovind was conceived?

(October 6, 2019 at 11:23 am)Succubus Wrote:

(October 6, 2019 at 6:50 am)BrianSoddingBoru4 Wrote: 'Wot ho, Cyril - what about invading India, then?'  'Nah, Clive.  They're at a lower technological level than us, they've got nothing we'd want.'

Boru

If these boys were to discover how much water we have;
Then-We-Are-Fucked.



Or mebbie not. Arrakis orbits the star Canopus which is ~300 light years from Earth, they would need a mighty telescope to spot a water world at that distance.

Water may indeed be a valuable resource for an interstellar spaceship, growing petunias or whatever but as a reaction mass for a propulsion system then that is one piss poor starship drive they have.
An interstellar drive system must use some sort of ion/photon/plasma drive and that wouldn't need much water.
Other than water what does planet Earth have that they can't find in the millions of planets much closer to their home world?

But then again, I could be talking shite.

Uh, >>90% of the water in our solar system is not on earth.   If our understanding of the process of planetary formation is correct, then most planetary systems would contain many times more water than present on earth, many of these would have them concentrated on large outer planets and moons.

Hydrogen and oxygen are the two most common elements in the Universe. This means water is very common. VERY COMMON.

(October 6, 2019 at 11:41 am)Anomalocaris Wrote: Uh, >>90% of the water in our solar system is not on earth.   If our understanding of the process of planetary formation is correct, then most planetary systems would contain many times more water than present on earth, many of these would have them concentrated on large outer planets and moons.

Apologies for being unclear, what I was stating in a rather vague roundabout way is, why does a starship need water?

Quote:Water may indeed be a valuable resource for an interstellar spaceship, growing petunias or whatever but as a reaction mass for a propulsion system then that is one piss poor starship drive they have.

Edit:

Quote:Other than water what does planet Earth have that they can't find in the millions of planets much closer to their home world?

Yes I see your point. My bad.

(October 6, 2019 at 11:42 am)Gawdzilla Sama Wrote: Hydrogen and oxygen are the two most common elements in the Universe. This means water is very common. VERY COMMON.

Yes, and what is more, water is more abundant in outer reaches of planetary systems, because when the parent star went through its t-Tauri stage early in its life, it blasted much of the water out of the inner parts of the planetary system before inner planets can form. So there are a lot more water out there than in here. 

More over, wet planets like earth, which exist close to their parent stars and thus deep down inside the gravity well of the sun, is hardly the economic place to mine water if your intention is to take it to a different star system.  You have to spend all the energy to push the water back up sun’s gravitational gradient.    Energy wise. It would be far more economically to get water from bodies in distant parts of solar system, where they would be much more loosely bound by sun’s gravity and thus easily detached from the sun’s gravity.

Overall, the notion that alien conquest of inner habitable planets would be driven by resource acquisition just does not make much sense.     There is no real natural resource available on earth that can’t be obtained in other parts of solar system where they would be easier to transport back to another stellar system.     If aliens were to come and visit in enormous spaceships, it also makes little sense to bring the enormous spaceship all the way into inner solar system and park them over the earth.  Again, it would take enormous amounts of energy to shed their interplanetary speed just so they can slide down the sun’s gravity well, and when they are ready to leave, burn enormous amounts of energy to climb back up the sun’s gravity well.

This was sort of my point, we have nothing they need.