Building a massive space weapon is all very well, but you have to find the materials to build it with. It’s easy to say that “sure, the Death Star would be expensive” but is there actually enough iron in the Earth to make the first Death Star? Centives decided to find out.
We began by loo king at how big the Death Star is. The first one is reported to be 140km in diameter and it sure looks like it’s made of steel. But how much steel? We decided to model the Death Star as having a similar density in steel as a modern warship. After all, they’re both essentially floating weapons platforms so that seems reasonable.
Scaling up to the Death Star, this is about 1.08×1015 tonnes of steel. 1 with fifteen zeros.
Which seems like a colossal mass but we’ve calculated that from the iron in the earth, you could make just over 2 billion Death Stars. You see the Earth’s crust may have a limited amount of iron, but the core is mostly our favourite metal and is both very big and very dense, and it’s from here that most of our death-star iron would come.
But, before you go off to start building your apocalyptic weapon, do bear in mind two things. Firstly, the two billion death stars is mostly from the Earth’s core which we would all really rather you didn’t remove. And secondly, at today’s rate of steel production (1.3 billion tonnes annually), it would take 833,315 years to produce enough steel to begin work. So once someone notices what you’re up to, you have to fend them off for 800 millennia before you have a chance to fight back. In context, it takes under an hour to get the steel for HMS Illustrious.
Oh, and the cost of the steel alone? At 2012 prices, about $852,000,000,000,000,000. Or roughly 13,000 times the world’s GDP.
The point was one against fiscal stimulus — while it may be possible to boost GDP by any amount through government spending, there is no guarantee whatever that that government spending will do anything productive. After all the toil and effort of building a Death Star what is an economy left with? On the surface of things, a giant metallic orb in space and very little else. In Misesian terms, this would be seen as a massive misallocation of capital, resources, labour and technology, building something that nobody in the market demanded and which could be ostensibly used to oppress people (“do what we say or we’ll fire our laser cannon at you!”).
Yet, I am going to try to defend it. I think that building the Death Star, or something similar is a very good idea and would have massive beneficial economic effects for employment, output, science, technology and so forth. And furthermore, I think it is possible in the very, very long run for a government to build the Death Star or something similar of a smaller scale without misallocating any capital, labour, technology or resources whatever.
First, I think that right now humanity is sitting in dangerous territory. There are over seven billion of us, yet we are all concentrated on one ecosystem — the Earth, with one tiny totally-dependent off-planet colony (the International Space Station) that houses less than ten people at a time. Simply, in our current predicament we are incredibly exposed. A single mass viral pandemic, asteroid strike or other cataclysm could completely wipe our species out. With humanity spread throughout the solar system (and preferably, the galaxy and the universe) our species is far less fragile to random extinction events. The Death Star itself — a giant space weapon — would be a safeguard against a particular kind of cataclysmic risk, that of hostile alien attack. If there are other advanced lifeforms populating our universe, they may see life on Earth and especially humans as an existential threat. Having a large, powerful weapon like a Death Star could be a strong safeguard against our own destruction by other species.
Zero Hedge’s mock proposal is actually quite thin, only taking into account the resource cost of the steel, and not the cost of getting the steel into space, building a moon-sized steel satellite in space, presumably including the development of laser cannon technology, some kind of propulsion system, the feeding and housing of a large permanent crew including oxygen and water recycling facilities, hydroponics and artificial food technologies, a transport system to get people and things between the Earth and the Death Star, etc. Nor does it take into account the cost of the labour in employing scientists and technologists to develop and prototype the technologies, employing engineers to deploy the technology, and employing labourers or automated robots to produce components and parts and to assemble the finished article. Simply, the cost would far exceed even what Zero Hedge projects, possibly by many times over.
So why the hell would I think that committing to spend vastly more than global GDP on a single project that nobody in the market is demanding is a good idea? Have I completely lost my mind, and any concept of sound economics that I once had? Well, on a potentially infinite timeline, such a huge figure (let’s say the necessary figure is ten times what Zero Hedge estimated, which could still be rather low in my honest opinion) pales into insignificance as we go further along the timeline. Building the Death Star is not currently a short term project that could be done to boost GDP in a single year to make up an output gap, deploy idle capital or reduce unemployment. In fact even if we committed to building the Death Star today, it is highly unlikely that we would actually even begin work on it in the next 100 or even 200 years. There would be vast technological, social and organisational challenges ahead before we could even begin to think seriously about commencing production. What we would begin work on are challenges far more modest and far closer to our present capabilities — sending a human to Mars, setting up a permanent base on the moon, setting up a permanent base on Mars, and developing technologies for those purposes — specifically multi-use lifters, a space elevator, improved solar energy collection and storage, improved nuclear batteries, improved 3-D printing technologies, higher energy particle accelerators, space mining technologies, robots, machine learning, computing, life support systems and things as mundane as increased science and science education spending.
Those kinds of tasks are much, much, much lower cost than actually committing to building the Death Star in one go, and can relatively easily be funded from presently idle resources (thus not misallocating any resources) as measured by the output gap which currently sits at around $856 billion (5.8% of potential GDP). The United States (alongside like-minded countries with similarly large output gaps) could fund a manned mission to Mars ($6 billion), build a new high energy particle accelerator ($12 billion), give ten-thousand million-dollar basic research grants ($10 billion), build a base on the Moon ($35 billion) and invest $20 billion more in science education for less than 10% of the current output gap. Better still, NASA and space-related spending historically has a relatively high multiplier of at least $2 (and possibly as much as $14 for certain projects, as well as a multiplier of 2.8 jobs for every job directly created) of extra economic activity generated per dollar spent. Given that space-spending yields new technologies like global positioning systems, satellite broadcasting, 3-D printers and memory foam that lead to new products, this is unsurprising. It also means that such spending is likely to get the economy back to full employment more quickly. Once this round of projects is completed, we will have a better idea of where we need to go technologically to be able to build a Death Star. The next time the economy has a negative output gap and unemployment, a new series of large-scale projects can commence. Eventually, with the growth of technology, automation and knowledge, a project on the scale of the Death Star may become not only economically viable but a valuable contribution to human capacity.
Many free market purists will wonder what the point of all of this is. Didn’t the Soviet economy collapse under the weight of huge misallocation of capital to large-scale grandiose projects that nobody wanted? What about all the projects that could have been undertaken by the free market in the absence of such a grandiose project? My answer to this is twofold — first of all, I am only proposing deploying idle resources that the market has chosen to allow to sit idle and unproductive for a long time. Second, there are some projects that are actually important but which are not currently viable in the market. Space technology is probably the most obvious example. While I greatly admire the new generation of space entrepreneurs, and while I concede that long-term space colonisation will be undertaken be private individuals and groups (in the manner of the Pilgrim Fathers who colonised America — people seeking the ability to live by their own rules, instead of those of established Earth-based jurisdictions) the private space industry is still a long way behind where states were forty or fifty years ago. The Apollo program that put human beings on the Moon has still not been matched by private enterprise.
Ultimately, the Death Star itself is far beyond current human capacities, and far beyond the capacity of the idle capital, labour and resources that we have the option of using up through public initiatives. This I must concede. But, as a super-long-term goal, the capacity to build such things is what our civilisation ought to aspire to. And getting to such super-long-term objectives requires investment and investigation today.