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To achieve interstellar travel, the Kline Directive instructs us to be bold, to explore what others have not, to seek what others will not, to change what others dare not. To extend the boundaries of our knowledge, to advocate new methods, techniques and research, to sponsor change not status quo, on 5 fronts, Legal Standing, Safety Awareness, Economic Viability, Theoretical-Empirical Relationship, & Technological Feasibility.
In this post I have updated the Interstellar Challenge Matrix (ICM) to guide us through the issues so that we can arrive at interstellar travel sooner, rather than later:
Interstellar Challenge Matrix (Partial Matrix)
| Propulsion Mechanism | Relatively Safe? | Theoretical-Empirical Relationship? |
| Conventional Fuel Rockets: | Yes, but susceptible to human error. | Known. Theoretical foundations are based on Engineering Feasible Theories, and have been evolving since Robert Goddard invented the first liquid-fueled rocket in 1926. |
| Antimatter Propulsion: | No. Extensive gamma ray production (Carl Sagan). Issue is how does one protect the Earth? Capable of an End of Humanity (EOH) event. | Dependent on Millennium Theories. John Eades states in no uncertain terms that antimatter is impossible to handle and create. |
| Atomic Bomb Pulse Detonation: | No, because (Project Orion) one needs to be able to manage between 300,000 and 30,000,000 atomic bombs per trip. | Known and based on Engineering Feasible Theories. |
| Time Travel: | Do Not Know. Depends on how safely exotic matter can be contained. | Dependent on a Millennium Theory. Exotic matter hypotheses are untested. No experimental evidence to show that Nature allows for a breakdown in causality. |
| String / Quantum Foam Based Propulsion: | Do Not Know. Depends on how safely exotic matter can be contained. | Dependent on a Millennium Theory. String theories have not been experimentally verified. Exotic matter hypotheses are untested. Existence of Quantum Foam now suspect (Robert Nemiroff). |
| Small Black Hole Propulsion: | No. Capable of an End Of Humanity (EOH) event | Don’t know if small black holes really do exist in Nature. Their theoretical basis should be considered a Millennium Theory. |
It is quite obvious that the major impediments to interstellar travel are the Millennium Theories. Let us review. Richard Feynman (Nobel Prize 1965) & Sheldon Lee Glashow (Nobel Prize 1979) have criticized string theory for not providing novel experimental predictions at accessible energy scales, but other theoretical physicists (Stephen Hawking, Edward Witten, Juan Maldacena and Leonard Susskind) believe that string theory is a step towards the correct fundamental description of nature. The Wikipedia article String Theory gives a good overview, and notes other critics and criticisms of string theories. In What is String Theory? Alberto Güijosa explains why string theories have come to dominate theoretical physics. It is about forces, and especially about unifying gravity with the other three forces.
Note, strings expand when their energy increases but the experimental evidence aka Lorentz-Fitzgerald transformations tell us that everything contracts with velocity i.e. as energy is increased.
In my opinion, the heady rush to a theory of everything is misguided, because there is at least one question that physics has not answered that is more fundamental than strings and particles. What is probability and how is it implemented in Nature?
Probabilities are more fundamental than particles as particles exhibit non-linear spatial probabilistic behavior. So how can one build a theory of everything on a complex structure (particles), if it cannot explain something substantially more fundamental (probabilities) than this complex structure? The logic defies me.
We can ask more fundamental questions. Is this probability really a Gaussian function? Experimental data suggests otherwise, a Var-Gamma distribution. Why is the force experienced by an electron moving in a magnetic field, orthogonal to both the electron velocity and the magnetic field? Contemporary electromagnetism just says it is vector cross product, i.e. it is just that way. The cross product is a variation of saying it has to be a Left Hand Rule or a Right Hand Rule. But why?
Is mass really the source of a gravitational field? Could it not be due to quark interaction? Can we device experiments that can distinguish between the two? Why do photons exhibit both wave and particle behavior? What is momentum, and why is it conserved? Why is mass and energy equivalent?
Can theoretical physicists construct theories without using the laws of conservation of mass-energy and momentum? That would be a real test for a theory of everything!
In my research into gravity modification I found that the massless formula for gravitational acceleration, g=τc2, works for gravity, electromagnetism and mechanical forces. Yes, a unification of gravity and electromagnetism. And this formula has been tested and verified with experimental data. Further that a force field is a Non Inertia (Ni) field, and is present where ever there is a spatial gradient in time dilations or velocities. This is very different from the Standard Model which requires that forces are transmitted by the exchange of virtual particles.
So if there is an alternative model that has united gravity and electromagnetism, what does that say for both string theories and the Standard Model? I raise these questions because they are opportunities to kick start research in a different direction. I answered two of these questions in my book. In the spirit of the Kline Directive can we use these questions to explore what others have not, to seek what others will not, to change what others dare not?
That is why I’m confident that we will have real working gravity modification technologies by 2020.
In concluding this section we need to figure out funding rules to ensure that Engineering Feasible and 100-Year Theories get first priority. That is the only way we are going to be able to refocus our physics community to achieve interstellar travel sooner rather than later.
Previous post in the Kline Directive series.
Next post in the Kline Directive series.
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Benjamin T Solomon is the author & principal investigator of the 12-year study into the theoretical & technological feasibility of gravitation modification, titled An Introduction to Gravity Modification, to achieve interstellar travel in our lifetimes. For more information visit iSETI LLC, Interstellar Space Exploration Technology Initiative.
Solomon is inviting all serious participants to his LinkedIn Group Interstellar Travel & Gravity Modification.
To achieve interstellar travel, the Kline Directive instructs us to be bold, to explore what others have not, to seek what others will not, to change what others dare not. To extend the boundaries of our knowledge, to advocate new methods, techniques and research, to sponsor change not status quo, on 5 fronts:
1. Legal Standing. 2. Safety Awareness. 3. Economic Viability. 4. Theoretical-Empirical Relationship. 5. Technological Feasibility.
Interstellar Challenge Matrix (Partial Matrix)
| Propulsion Mechanism | Legal? | Costs Estimates |
| Conventional Fuel Rockets: | Yes | Greater than US$1.19E+14 |
| Antimatter Propulsion: | Do Not Know. | Between US$1.25E+20 and US$6.25E+21 |
| Atomic Bomb Pulse Detonation: | Illegal. This technology was illegal as of 1963 per Partial Test Ban Treaty | Between $2.6E12 and $25.6E12 . These are Project Orion original costs converted back to 2012 dollar. Requires anywhere between 300,000 and 30,000,000 bombs!! |
| Time Travel: | Do Not Know. | Requires Exotic Matter, therefore greater than antimatter propulsion costs of US$1.25E+20 |
| Quantum Foam Based Propulsion: | Do Not Know. | Requires Exotic Matter, therefore greater than antimatter propulsion costs of US$1.25E+20 |
| Small Black Hole Propulsion: | Most Probably Illegal in the Future | Using CERN to estimate. At least US$9E+9 per annual budget. CERN was founded 58 years ago in 1954. Therefore a guestimate of the total expenditure required to reach its current technological standing is US$1.4E11. |
Note Atomic Bomb numbers were updated on 10/18/2012 after Robert Steinhaus commented that costs estimates “are excessively high and unrealistic”. I researched the topic and found Project Orion details the costs, of $2.6E12 to $25.6E12, which are worse than my estimates.
These costs are humongous. The Everly Brothers said it the best.
Let’s step back and ask ourselves the question, is this the tool kit we have to achieve interstellar travel? Are we serious? Is this why DARPA — the organization that funds many strange projects — said it will take more than a 100 years? Are we not interested in doing something sooner? What happened to the spirit of the Kline Directive?
From a space exploration perspective economic viability is a strange criterion. It is not physics, neither is it engineering, and until recently, the space exploration community has been government funded to the point where realistic cost accountability is nonexistent.
Don’t get me wrong. This is not about agreeing to a payment scheme and providing the services as contracted. Government contractors have learned to do that very well. It is about standing on your own two feet, on a purely technology driven commercial basis. This is not an accounting problem, and accountants and CFOs cannot solve this. They would have no idea where to start. This is a physics and engineering problem that shows up as an economic viability problem that only physicists and engineers can solve.
The physics, materials, technology and manufacturing capability has evolved so much that companies like Planetary Resources, SpaceX, Orbital Sciences Corp, Virgin Galactic, and the Ad Astra Rocket Company are changing this economic viability equation. This is the spirit of the Kline Directive, to seek out what others would not.
So I ask the question, whom among you physicist and engineers would like to be engaged is this type of endeavor?
But first, let us learn a lesson from history to figure out what it takes. Take for example DARPA funding of the Gallium Arsenide. “One of DARPA’s lesser known accomplishments, semiconductor gallium arsenide received a push from a $600-million computer research program in the mid-1980s. Although more costly than silicon, the material has become central to wireless communications chips in everything from cellphones to satellites, thanks to its high electron mobility, which lets it work at higher frequencies.”
In the 1990s Gallium Arsenide semiconductors were so expensive that “silicon wafers could be considered free”. But before you jump in and say that is where current interstellar propulsion theories are, you need to note one more important factor.
The Gallium Arsenide technology had a parallel commercially proven technology in place, the silicon semiconductor technology. None of our interstellar propulsion technology ideas have anything comparable to a commercially successful parallel technology. (I forgot conventional rockets. Really?) A guesstimate, in today’s dollars, of what it would cost to develop interstellar travel propulsion given that we already had a parallel commercially proven technology, would be $1 billion, and DARPA would be the first in line to attempt this.
Given our theoretical physics and our current technological feasibility, this cost analysis would suggest that we require about 10 major technological innovations, each building on the other, before interstellar travel becomes feasible.
That is a very big step. Almost like reaching out to eternity. No wonder Prof Adam Franks in his July 24, 2012 New York Times Op-Ed, Alone in the Void, wrote “Short of a scientific miracle of the kind that has never occurred, our future history for millenniums will be played out on Earth”.
Therefore, we need to communicate to the theoretical physics community that they need get off the Theory of Everything locomotive and refocus on propulsion physics. In a later blog posting I will complete the Interstellar Challenge Matrix (ICM). Please use it to converse with your physicist colleagues and friends about the need to focus on propulsion physics.
In the spirit of the Kline Directive — bold, explore, seek & change — can we identify the 10 major technological innovations? Wouldn’t that keep you awake at night at the possibility of new unthinkable inventions that will take man where no man has gone before?
PS. I was going to name the Interstellar Challenge Matrix (ICM), the Feasibility Matrix for Interstellar Travel (FMIT), then I realized that it would not catch on at MIT, and decided to stay with ICM.
Previous post in the Kline Directive series.
Next post in the Kline Directive series.
—————————————————————————————————
Benjamin T Solomon is the author & principal investigator of the 12-year study into the theoretical & technological feasibility of gravitation modification, titled An Introduction to Gravity Modification, to achieve interstellar travel in our lifetimes. For more information visit iSETI LLC, Interstellar Space Exploration Technology Initiative.
Solomon is inviting all serious participants to his LinkedIn Group Interstellar Travel & Gravity Modification.
Previous Post in this Debunking Series.
I just watched Looper the movie. It is such a good movie and a great story. But then I’m biased. Anything with Bruce Willis is a great movie. Bruce Willis is getting older, which reminds me so am I!
For those who have not watched Looper I won’t give the story away … Looper is a must watch for science fiction fans. And there were other great movies and episodes about time travel. The three Back to the Future, and the Star Trek episodes, for starters.
That was the good news, and now for the bad news. Time travel is impossible. The mathematics behind time travel is excellent, but the physics is not. In contemporary physics, the mechanism of time travel requires wormholes. You get into a wormhole on one side and you pop out the other side either in the future or in the past, depending on what the wormhole was designed to do.
I did some digging, and found the Polchinski’s billiard ball paradox which is a version of the matricide paradox (travelling back through time before one’s birthday and killing one’s mother, hey what about father?) without the free will component. “A billiard ball sent through a wormhole which sends it back in time. In this scenario, the ball is fired into a wormhole at an angle such that, if it continues along that path, it will exit the wormhole in the past at just the right angle to collide with its earlier self, thereby knocking it off course and preventing it from entering the wormhole in the first place.”
Then Kip Thorne’s students came up another solution “to avoid any inconsistencies, by having the ball emerge from the future at a different angle than the one used to generate the paradox, and deliver its younger self a glancing blow instead of knocking it completely away from the wormhole, a blow which changes its trajectory in just the right way so that it will travel back in time with the angle required to deliver its younger self this glancing blow.”
Add to this second scenario that one collects the older billiard ball in a basket. Of course there are some boundaries driven by conservation of mass and when the wormhole was created, that constraint what is observed. But this then raises some questions. How many balls are there in the basket at the start? How many billiard balls does one observe in the middle of this experiment? Think parallel processing not sequential logic.
And, what can I do?” That is, since cause and effect no longer have a consistent relationship, if the basket fills up with billiard balls before I set off the experiment, can I choose not to set off the experiment?
It is sufficient to stop here to make the case that time travel is not possible.
I’m sure Kip Thorne, his students and many, many others are doing good work to develop theoretical models. I hope these older theoretical wormhole models would evolve to new ‘tunneling’ models that do not allow for inconsistent relationships between cause and effect. And these new ‘tunneling’ models will one day allow us to do interstellar travel using some kind of tunneling technology.
Right now time travel is just too easy to debunk. We are not there, yet.
The next in the Debunking Series.
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Benjamin T Solomon is the author & principal investigator of the 12-year study into the theoretical & technological feasibility of gravitation modification, titled An Introduction to Gravity Modification, to achieve interstellar travel in our lifetimes. For more information visit iSETI LLC, Interstellar Space Exploration Technology Initiative.
Solomon is inviting all serious participants to his LinkedIn Group Interstellar Travel & Gravity Modification.