Apparently I’m so close to this idea that I’ve never explained it properly. That’s not how gravitational field propulsion works at all – it’s way cooler than that.
The Newtonian explanation is the simplest model so I’ll use that one for pedagogic purposes, but the underlying concept works in general relativity as well. Robert L. Forward wrote about it in his 1990 paper
Negative Matter Propulsion, which is a milestone paper as far as I’m concerned (although Bondi probably deserves the bulk of the credit for discovering the idea in the first place).
Here’s the basic principle of operation: if you have a gravitating mass, we’ll call it +M, and set it next to an equivalent magnitude of negative mass, we’ll call it –M, then the gravitational interaction between the two is surprising and unique. The positive mass attracts the negative mass, but the negative mass repels the positive mass. So the two masses don’t get closer to each other, but instead the positive mass accelerates away from the negative mass at the same rate that the negative mass accelerates toward the positive mass. The two continue to accelerate together indefinitely along the common axis. Note that this doesn’t require any expenditure of energy, and it doesn’t violate any of the conservation laws because the negative mass terms (negative kinetic energy and momentum) cancel out the positive mass terms. It gets much more complicated when we look at the technical details in the context of general relativity, but that basic idea is still perfectly valid and the core principle at work with the Alcubierre warp drive that’s been so controversial.
The primary objection to the idea, of course, is that there’s no such thing as “negative matter.” And as far as we know, that’s true. In fact physicists were so troubled by this idea of negative mass that they came up with a postulate to forbid negative mass states, and they called it the positive energy theorem.
But it turns out that you don’t actually need negative mass to make this work; all you need is to create a negative value of stress-energy tensor. And this can be done because pressure accounts for three of the terms in the stress-energy tensor, and pressure can be negative (aka "tension"). So in theory, positive matter can generate a negative stress-energy tensor, which acts physically exactly like a negative mass. A similar principle is the leading explanation for dark energy, by the way – the energy in every cubic volume of spacetime is positive but it generates a negative gravitational effect. And the inflationary era of the Big Bang appears to be driven by something similar as well.
This technique of generating a negative effective mass using positive matter was recently proven to be feasible within the context of general relativity in these two academic papers, which also explain why the positive energy theorem doesn’t apply to the accelerating universe that we live in:
“On negative mass,” Jonathan Belletête and M. B. Paranjape, 2013
https://arxiv.org/pdf/1304.1566.pdf
“Negative mass bubbles in de Sitter space-time,” Saoussen Mbarek & M. B. Paranjape, 2014
https://arxiv.org/pdf/1407.1457.pdf
And there are other approaches to producing a negative value of stress-energy tensor as well. Now that we know that these states are physically permissible, it’s an engineering problem rather than a theoretical problem.
I would take it even further and say that it’s not just a “large information loss” between compartments – highly compartmentalized programs that collect and analyze data on unexplained aerial devices are probably more like a black hole, with little if any data leaking out.
But they’d still get lots of data, because there’s an official bureaucratic protocol for sending pertinent information into them. I can’t recall the name of the document that proved that this protocol exists, but I recall hearing John Greenwald talk about following it to the correct destination within the military and then giving them a call to see if he could use FOIA requests to get some documents out. They weren’t forthcoming, naturally. But then he found a sister agency in Canada, and got lucky with a helpful person on the phone who ended up sending him a treasure trove of documents that he subsequently received and uploaded to his site
The Black Vault.
So unlike information systems, bureaucracies can maintain functioning compartmentalized programs indefinitely, because other departments in the government are happy to have a destination to send their weird reports and wash their hands of them.
I think that’s mostly true (though it's also taught us that the program exists and we've also learned new details about the Nimitz case from the pilots and the video) but I don’t see anything sinister about it. Luis Elizondo and the people he’s working with now, simply thought that the people had a right to know, and that officials within the government (like Gen. Mattis) needed to know that our sensitive airspace is not secure, so they can do something about it (like developing the technology required to defend against intrusions by these advanced anomalous devices).
They’re absolutely driven to change the narrative. But that’s because the existing narrative (“people who believe in ufos are nutters”) is not only an ugly application of disinformation techniques against the public – it’s also bad/reckless/dangerous policy.
So I couldn’t be happier that they’ve taken great personal and professional risk to change the narrative; in fact, most of us have been trying to do the same thing for decades, and with their help, we’re finally making some real headway. I never thought I'd live to see the day when mainstream news media reported on this subject seriously, yet here we are.
Honestly I'm kind of baffled by folks who are going out of their way to turn this into some kind of diabolical conspiracy or shameless money grab. I guess some people just have no capacity for judging character. But it's plain as day to me from watching these people talk and seeing what's going on, that these guys are our allies - they agree with us that exotic aerial devices are being observed in our airspace, and they're doing their best to prove it, and they want to figure out how these devices outperform our most advanced aircraft almost as badly as I do. Good on them; I hope they succeed with all of those objectives, and transform the world in the process. It's about damn time.
I totally understand why he’s so pissed, but I think this is a wrong-headed strategy. If we subject the government to legal action over this, they’ll lock down the information that we want even more tightly, or simply destroy it. And it compromises the people who are now currently working to get that information out, by setting up an adversarial situation between us and the people on the inside who are trying to help. And they
are trying to help: those videos didn't get declassified by themselves - people on the inside did that.
We’d be far better served by giving them immunity from this kind of thing. It’s better to just say “look – it really sucks that you guys have been lying to us and defaming us about this subject for seventy years, but that’s water under the bridge: give us your findings and the supporting data which isn’t reasonably classified for valid national security reasons, and we can kiss and make up.” That’s the only way we have any chance of getting the information out, and finally opening up serious scientific discussion about it. This is way too important to get all vindictive about it - I say we offer them a carrot instead of the stick (and frankly it's obvious that they have the bigger stick anyway).