Christmas festivities in Bethlehem

Christmas festivities in Bethlehem

Bethlehem, West Bank (AP) – Palestinians are preparing to host pilgrims from around the world in celebrating Christmas in the West Bank city of Bethlehem.

Archbishop Pierbattista Pizzaballa, the top Roman Catholic cleric in the Holy Land, crossed an Israeli military checkpoint from Jerusalem on Monday ahead of midnight Mass at the Church of the Nativity, the traditional birthplace of Jesus.

Hundreds of locals and foreign visitors gathered in Manger Square as bagpipe-playing Palestinian Scouts paraded past a giant Christmas tree.

Palestinian Tourism Minister Rula Maaya says “the whole world is looking toward Bethlehem” and the Palestinians are ready to host them.

The Christmas festivities traditionally bring a boost of holiday cheer to Christians in the Holy Land, who make up just a small percentage of the local population.

Christmas in Palestine

December 22nd – December 30th 2018

During the Christmas season, Bethlehem in Palestine welcomes Christian worshipers from all denominations from all over the world. An estimated 10,000 were in the Square on Christmas Eve last year!  It is an exciting, colorful and lively time during which a message of hope is broadcast around the world by the large number of media agencies covering Manger Square in which the Church of the Nativity is found.

What will we do?

You are invited to take part in this unique experience with To Be There. We have a well-planned a program providing you with opportunities to enjoy the Christmas season as well as gain an understanding of ancient and recent history, and how the occupation affects the lives and the future of Palestine and its people.  Topics which will be covered during your visit include Palestinian refugees, their  legal status and the hardships they face; Israeli settlement colonies which contribute to the forcible displacement of Palestinians and land theft; the treatment by Israel of Palestinian children and the documented violations of their rights; Palestinian political prisoners and their treatment under military law; the Israeli infrastructure of occupation and apartheid – walls, security zones, check points and much more.

Why should we come?

Palestinians enjoy welcoming foreign guests to participate in the procession to the Church lead by Palestinian scout groups from all over Palestine and Israel accompanied by the music of horns, bagpipes and drums. However, Christmas is experienced differently Bethlehem, providing an example of how Palestinians enjoy such occasions while living under the Israeli military occupation which imposes sever hardships on the people, restricting their freedom of movement, their livelihoods and economic and social well-being.  Sadly, the occupation and its policies have turned Bethlehem in to a ghetto around which Israel continues to tighten the noose with its encroachment and development of settler colonies, ‘Jewish only’ restricted roads and security zones, checkpoints and military installations.  In fact, Israeli controls 90% of tourism into Bethlehem.  Christmas in Palestine is an opportunity to visit Palestine, to make a contribution to this vibrant community during the Holiday Season and witness the reality of occupation.

May we all have a Merry Christmas.

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Human ancestors may have spread to north Africa

Human ancestors may have spread to north Africa

Human ancestors may have spread to north Africa earlier than thought, stone tool discovery suggests

File 20181128 32226 1i5mteg.jpg?ixlib=rb 1.1
An Oldowan core freshly excavated at Ain Boucherit from which sharp-edged cutting flakes were removed.
M. Sahnouni

John McNabb, University of Southampton

East Africa is famously the birthplace of humankind and the location where our ancient hominin ancestors first invented sophisticated stone tools. This technology, dating back to 2.6m years ago, is then thought to have spread around Africa and the rest of the Old World later on.

But new research, published in Science, has uncovered an archaeological site in Algeria containing similar tools that may be as old as 2.44m years. The team, led by the archaeologist Mohamed Sahnouni, excavated stone tools at the site Ain Boucherit that they estimate are between 1.92m and 2.44m years old. This suggests that human ancestors spread to the region much earlier than previously thought or that the stone tool technology was simultaneously invented by earlier hominin species living outside east Africa.

The artefacts belong to the “Oldowan” – the oldest known stone tool industry. Rounded river cobbles, used as hammer stones, were used to flake other cobbles, turning them into simple cores. The flakes were then transformed into scrapers and various knives by resharpening their edges. Essentially this was a tool kit for processing animal tissue, such as marrow, bone and brain tissue, but also plant material. However, it is not known for sure which hominin species first created Oldowan tools – potentially Australopithecus or Homo habilis.

The stone tools are very similar to those of early Oldowan sites in East Africa. Bones at the site even have cut marks, where a stone tool has gouged into the bone during butchery. The cut marks may mean these hominins were actively hunting.

But we have only ever found early Oldowan tools in the east African rift valley before, more than 4,000km away. We have always assumed that it started there some 2.6m years ago, so we shouldn’t find it so far from its original home at that age unless we have missed something.

Many archaeologists do indeed suspect there is an unseen ghost somewhere in the machine. There have been discoveries of early hominin sites to the south, in Chad, that suggest that some of our earliest ancestors lived well beyond East Africa. Oldowan-like sites have also been found outside of Africa, in Georgia, beginning at 1.8m years ago – which seems surprisingly early.

Game changer

The new discovery is telling us that our focus on East Africa as the birthplace of early humans is too narrow – we should be doing what Sahnouni and others have done all along and looking elsewhere. The same team recently published findings about another Oldowan site in Algeria that is about 1.75m years old, but to find early Oldowan tools well over half a million years earlier is a bit of a game changer.

Sahnouni excavating at the site.
M. Sahnouni

It all hinges on how reliable that 2.44m-year-old date really is. Dating specialists will be scrutinising the details very carefully. According to the paper, four different techniques were used. Palaeomagnetic dating measures the direction and intensity of the Earth’s magnetic field in sediments – this is locked into rocks when they form, helping to tell us how old they are.

The team found that the upper level mapped onto a short period of normal polarity taking place between 1.77m and 1.94m years ago. The lower level’s sediments fitted into a long period of reversed direction at between 1.94m and 2.58m years ago.

To get more precise dates, the team turned to a dating technique called electron spin resonance dating, which measures radioactive decay in quartz sand grains. However, they used a less common version of the technique that was operating close to its upper limit of reliability at this age range. The measurement delivered an age of 1.92m years old, younger than suggested by paleomagnetism.

There are some concerns about how suitable this last method is but the team has been honest about that. They also compared the dates with extinction times of animals present at the site, which suggested the date wasn’t impossible.

To get a better idea of the maximum age of the tools, they used a technique for estimating the rates of sedimentation – basically how long the different layers at the site took to build up. You have to throw in some fancy statistical work though, and map it onto the palaeomagnetic results. Extrapolating backwards in time, the team calculated that the actual age of the lower level is 2.44m years old. I suspect dating specialists will be looking at this carefully.

Mystery hominin?

Now to our ghost. The oldest tools ever found outside of Africa are the ones from Georgia dated to 1.8m years ago. There is a small Oldowan-like site in Pakistan from around the same time and more core-and-flake sites in east China at 1.66m years ago. If the Georgian site represents the first move out of Africa, then these early African migrants got to Pakistan and China extremely quickly.

Stone tool cut marks on animal skeleton.
I. Caceres

In Georgia, the tools may have been made by early Homo erectus, which dates back to about 1.8m years ago. As there is a Homo erectus specimen from China dated to 1.6m years old, it is easy to assume that Homo erectus must have been the species that spread the tool technology around the world – and much quicker than we had thought.

But we cannot be sure of that. What if our ghost was an earlier hominin species from Africa predating Homo erectus – such as Homo habilis? Perhaps the Oldowan actually began earlier than 2.6m years ago, and was already widespread throughout Africa by 2.4m years ago.

Maybe our mysterious hominin began to migrate out from Africa before 1.8m years ago, and carried its core-and-flake industry eastwards. That would certainly give it more time to cover those huge distances. Perhaps Homo erectus only migrated eastwards out of Africa later, following in the footsteps of an earlier traveller that we know nothing about.

So that’s a lot of maybes, but then nobody expected there to be Oldowan tools in Georgia when they were first found. It caused a lot of controversy, but now most archaeologists are comfortable with the finding. The Georgian archaeologists went back, did more work and proved their case. I don’t doubt Sahnouni and his team will be doing the same.The Conversation

John McNabb, Senior Lecturer in Palaeolithic Archaeology, University of Southampton

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Evidence of a Cosmic Calamity in ancient Dead Sea

Evidence of a Cosmic Calamity in ancient Dead Sea

 

Archaeologists at a site in what’s now Jordan have found evidence of a cosmic calamity as told by Bruce Bower on November 20, 2018.  Here it is.

An exploding meteor may have wiped out ancient Dead Sea communities

 

ANCIENT WIPEOUT Preliminary evidence indicates that a low-altitude meteor explosion around 3,700 years ago destroyed cities, villages and farmland north of the Dead Sea (shown in the background above) rendering the region uninhabitable for 600 to 700 years. Fightbegin/istock.com

 

DENVER — A superheated blast from the skies obliterated cities and farming settlements north of the Dead Sea around 3,700 years ago, preliminary findings suggest.

Radiocarbon dating and unearthed minerals that instantly crystallized at high temperatures indicate that a massive airburst caused by a meteor that exploded in the atmosphere instantaneously destroyed civilization in a 25-kilometer-wide circular plain called Middle Ghor, said archaeologist Phillip Silvia. The event also pushed a bubbling brine of Dead Sea salts over once-fertile farm land, Silvia and his colleagues suspect.

People did not return to the region for 600 to 700 years, said Silvia, of Trinity Southwest University in Albuquerque. He reported these findings at the annual meeting of the American Schools of Oriental Research on November 17.

Excavations at five large Middle Ghor sites, in what’s now Jordan, indicate that all were continuously occupied for at least 2,500 years until a sudden, collective collapse toward the end of the Bronze Age. Ground surveys have located 120 additional, smaller settlements in the region that the researchers suspect were also exposed to extreme, collapse-inducing heat and wind. An estimated 40,000 to 65,000 people inhabited Middle Ghor when the cosmic calamity hit, Silvia said.

The most comprehensive evidence of destruction caused by a low-altitude meteor explosion comes from the Bronze Age city of Tall el-Hammam, where a team that includes Silvia has been excavating for the last 13 years. Radiocarbon dating indicates that the mud-brick walls of nearly all structures suddenly disappeared around 3,700 years ago, leaving only stone foundations.

What’s more, the outer layers of many pieces of pottery from same time period show signs of having melted into glass. Zircon crystals in those glassy coats formed within one second at extremely high temperatures, perhaps as hot as the surface of the sun, Silvia said.

High-force winds created tiny, spherical mineral grains that apparently rained down on Tall el-Hammam, he said. The research team has identified these minuscule bits of rock on pottery fragments at the site.

Examples exist of exploding space rocks that have wreaked havoc on Earth (SN: 5/13/17, p. 12). An apparent meteor blast over a sparsely populated Siberian region in 1908, known as the Tunguska event, killed no one but flattened 2,000 square kilometers of forest. And a meteor explosion over Chelyabinsk, Russia, in 2013 injured more than 1,600 people, mainly due to broken glass from windows that were blown out.

Citations: P.J. Silvia et al. The 3.7kaBP Middle Ghor event: catastrophic termination of a Bronze Age civilization. American Schools of Oriental Research annual meeting, Denver, November 17, 2018.

Further Reading: T. Sumner. Here’s how an asteroid impact would kill you. Science News. Vol. 191, May 13, 2017, p. 12. 

Remarkable discovery about the Great Pyramid

Remarkable discovery about the Great Pyramid

What began as an expedition to record the inscriptions of ancient Egyptian quarry workers produced a remarkable discovery about the Great Pyramid at Giza. My colleagues and I in the Anglo-French joint archaeological mission to the ancient quarry site of Hatnub recently revealed the existence of a well-preserved haulage ramp dating to the time of the Great Pyramid, roughly 4,500 years ago.

The story is told by Roland Enmarch, University of Liverpool.

Great Pyramid: how my research on ancient Egyptian poetry led to an amazing discovery

File 20181107 74757 1nzaxpf.jpg?ixlib=rb 1.1
Shutterstock

 

We think this could significantly change the theories about how the workers who built the monument were able to transport such large blocks of stone to great heights. It could even provide evidence that pulleys were invented hundreds of years earlier than previously documented.

The rock-cut ramp is flanked by two flights of rock-cut stairs, into which are cut post holes that would originally have held wooden posts, now long perished. The pattern of post holes is well enough preserved that we can begin to reconstruct a pulley system that would have been used to lift large blocks of alabaster out of the open-cast quarry.

The ancient ramp.
Roland Enmarch, Author provided

While some quarrymen would have been stationed above the blocks, hauling them upwards directly, others would have stood below the blocks, pulling downwards. Their ropes would have been lashed round the post holes and attached to the alabaster blocks, so that both groups were exerting force to pull the blocks up out of the quarry.

This stone haulage system makes efficient use of the limited available space on the ramp, and it is reasonable to speculate that this same pulley technology would also have been used in the construction of the Great Pyramid. While pulley systems are well known from Greek civilisation in the first millennium BC, the evidence from Hatnub pushes their use much further back in time, as it pre-dates the Greek evidence by some 2,000 years.

Steep incline.
Roland Enmarch, Author provided

The Hatnub haulage ramp is also much steeper than most previous reconstructions of Egyptian haulage ramps. This is significant because one of the long-standing objections to the theory that the Great Pyramid was build using a single large ramp was the enormous volume of such a ramp (which would have had a greater volume than the Great Pyramid itself). With a much steeper gradient, the length and volume of such a haulage ramp would be much smaller, suggesting that this old theory needs to be re-evaluated more seriously.

Many other theories have previously been proposed for how the Great Pyramid was constructed. For example, a ramp might have coiled around the sides of the pyramid. There are also many suggestions involving levers and similar mechanisms. (And, of course, there are always those lacking in imagination who cannot accept a human explanation, and instead groundlessly evoke aliens or Atlanteans). The merit of our recent discoveries is that they give us solid archaeological evidence we can use to test previous theories.

Ancient graffiti

These discoveries have emerged from the work of the University of Liverpool’s joint expedition with the French Institute for Oriental Archaeology in Cairo to Hatnub, which is some 20km from the Nile in the eastern desert of Middle Egypt. This quarry was the most prestigious ancient source of Egyptian alabaster, the milky white banded translucent stone that was used by the Egyptians to make vessels, statues, and architectural items.

Our original aim was purely to record the surviving inscriptions left by quarrymen 4,500 to 4,000 years ago. I began my career studying Egyptian poetry, but it turns out quarrymen could on occasion get quite poetic when writing their graffiti in the quarry. And so I now study these texts, written in a cursive version of the Egyptian script known as hieratic.

We have so far identified more than 100 previously unrecorded texts, offering a wealth of information about the organisation and logistics of the expeditions that came to the quarry to extract alabaster. They mention royal patronage, the hundreds (and, on occasion, thousands) of expedition personnel, the numbers of blocks mined, and the time taken to ferry them to their ultimate destinations.

Stone inscriptions.
Roland Enmarch, Author provided

Some of the inscriptions take a more long-term point of view, and seek to convince future visitors to the quarry that their predecessors were good people, and deserve to be treated with respect (and offerings) after their death. In the 21st century, we are accustomed to talk of “posting” to “walls”. But at Hatnub we have an actual Bronze Age wall whose texts speak across the years, and create a solidarity among those who came to work in the quarry, generation after generation.

More recently we have expanded our work (and our team) to record the wider archaeological features of the extremely well-preserved Bronze Age industrial landscape around the quarry. We are collecting and analysing the stone tools that litter the site, offering insights into the process of extracting blocks from the bedrock. Through experimental archaeology we are learning just how rapidly alabaster needed to be worked before it dried and hardened after extraction.

We are also studying the ancient road connecting the quarry to the Nile Valley, which is flanked by hundreds of simple dry-stone shelters used by workmen for accommodation and stoneworking. We have simple dry-stone religious cairns and other structures of possible ritual function. The recent clearance of debris from the haulage ramp leading out of the quarry has been part of our study of this wider context.

Our ultimate goal is to study all aspects of stone extraction and transport at Hatnub, integrating the rich textual and archaeological evidence to provide a more holistic understanding of quarrying in ancient Egypt. Few sites offer the range and diversity of evidence that survives at Hatnub. We have many years of work ahead of us; the potential for further exciting discoveries is huge.The Conversation

Roland Enmarch, Senior Lecturer in Egyptology, University of Liverpool

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Artist Rebuilding war destroyed Baghdad Library

Artist Rebuilding war destroyed Baghdad Library

History repeating itself over and over, Iraq and its Capital City Baghdad know how the first to pay is as always those that the mob instinctively understand as being the seat of power. Knowledge that is; so destroying the libraries was like getting rid of the symbols of the civilisation. However, unlike their predecessors, the latest invaders as elaborated here in this article are helping in the endeavour to reconstruct the most significant collateral damage of all through the initiative of an Artist Rebuilding war destroyed Baghdad Library.

A Smithonian SmartNews Keeping you current article by Brigit Katz dated August 15, 2018, is about how a pertinent gesture of rebuilding war destroyed Baghdad Library could   


How an Artist Is Rebuilding a Baghdad Library Destroyed During the Iraq War

 

“168:01,” an installation now on view at the Aga Khan Museum in Toronto, encourages visitors to donate books to the University of Baghdad

(Aly Manji)

 

In 2003, at the start of the U.S.-led war in Iraq, looters set fire to the College of Fine Arts at the University of Baghdad. The college’s vast collection of 70,000 books was destroyed, and 15 years later, students still have few titles at their disposal. So, as Hadani Ditmars reports for the Art Newspaper, an installation at the Aga Khan Museum in Toronto is asking the public to help replenish the school’s lost library.

168:01,” as the project by Iraqi-American artist Wafaa Bilal is titled, is a stark white display featuring bookshelves filled with 1,000 blank books. Visitors are encouraged to replenish the volumes with titles from an Amazon wish list compiled by the college’s students and faculty; donations can be made by sending the books on the wish list to the museum, or by gifting funds to the project through Bilal’s website.

In exchange for their donations, visitors are able to take home one of the exhibition’s white volumes that represent a rich cultural heritage stripped bare by years of conflict. In turn, the colorful books they contributed to the project will ultimately be sent to the College of Fine Arts.

“I wanted a simple visual representation of what’s been lost,” Bilal told Murray Whyte of the Toronto Star last month. “But what’s important is that, over time, this place comes back to life.”

Though Bilal’s project is focused on recouping the losses of one tragic event, “168:01” calls attention to a long history of cultural destruction in Iraq. The installation’s title refers to the destruction of the House of Wisdom, or Bayt al-Hikma, a grand library possibly founded by the Abbasid caliph Al-Mansur in the 8th century. Legend has it that when the Mongols laid siege to Baghdad in 1258, the library’s entire collection of manuscripts and books were thrown into the Tigris. The river is said to have run black for seven days—or 168 hours—due to all the ink seeping into its waters. But the “o1” in the installation’s title is meant to signify a new era of restoration in Iraq—one that looks beyond centuries of loss.

Bilal, who came to America as a refugee in the wake of the First Gulf War, often reflects upon the traumas that have taken place in the country of his birth. In one of his best known works, the 2007 project “Domestic Tension,” the artist sequestered himself in a gallery space and broadcasted live on the internet. Viewers could chat with him at all hours—and opt to shoot him with a robotically controlled paintball gun.

“168:01,” by contrast, seeks to move forward from violence. “To be completely frank, when we talk about war and destruction, when you try to bring that image here, I don’t think it resonates,” Bilal told Whyte of the Star. “There’s an obsession, I think, with images of conflict — when war is taking place, you want to engage people with that. But what happens post-conflict? Either you move on, or you look and say, what needs to be done now? I want to reflect the time now, and now is about rebuilding.”

“168:01” was first conceptualized with the Art Gallery of Windsor and curator Srimoyeee Mitra for Bilal’s major solo exhibition at the museum in 2016. The project has since appeared in various iterations at other museums and galleries around the globe—from a tall tower of books at the Foundation for Art and Creative Technology in Liverpool to an entire room at the National Taiwan Museum of Fine Arts.

Though the installation at the Aga Khan Museum winds down Sunday, it will be rebuilt for the National Veterans Art Museum Triennial in Chicago next summer.

To date, thanks to visitors who have donated to the project, Bilal has been able to ship 1,700 texts back to Baghdad, contributing to the effort to rebuild the College of Fine Arts’ once prolific collection.

Read more: https://www.smithsonianmag.com/smart-news/artist-hopes-rebuild-baghdad-library-destroyed-during-iraq-war-180969979/#dbyxWHZyxugV3IVE.99
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The world’s weird self-organizing economy seen from the MENA

The world’s weird self-organizing economy seen from the MENA

Excerpts of the first 3 points of a brilliant article posted on July 11, 2018 by Gail Tverberg are republished here for their undoubtful interest. It is about how today’s world economy is perceived from the USA as things are unfolding under Trump’s leadership. Meanwhile, the world’s weird self-organizing economy seen from the MENA would seem not to be exactly any different for reasons that we could ponder and eventually elaborate on sometime in the near future.

The world’s weird self-organizing economy

Today’s indications seem to suggest that an even more major recession than the Great Recession may strike in the not too distant future. Why should this be the case? Am I imagining problems where none exist?
The next ten sections provide an introduction to how the world’s self-organizing economy seems to operate.
1) The economy is one of many self-organized systems that grow. All are governed by the laws of physics. All use energy in their operation.
There are many other self-organizing systems that grow. One such system is the sun. Some forecasts indicate that it will keep expanding in size and brightness for about the next five billion years. Eventually, it is expected to collapse under its own weight.
Hurricanes are a type of self-organizing system that grows. Hurricanes grow over warm ocean waters. If they travel over land for a short time, they can sometimes shrink back a bit and grow again once they have an adequate source of heat-energy from warm water. Eventually, they collapse.
Plants and animals also represent self-organizing systems that grow. Some plants grow throughout their lifetimes; others stabilize in size after reaching maturity. Animals continue to require food (a form of energy) even after they stabilize at their mature size.
We can’t use the typical patterns of these other growing self-organized systems to conclude much about the future path of the world’s economic growth because individual patterns are quite different. However, we notice that cutting off the energy supply used by any of these systems (for example, moving a hurricane permanently over land or starving a human) will lead to the demise of that system.
We also know that lack of food is not the only reason why humans die. Based on this observation, it is a reasonable conclusion that having enough energy available is not a sufficient condition to guarantee that the world economy will continue to operate as in the past. For example, a blocked shipping channel, such as at the Strait of Hormuz, could pose a significant problem for the world economy. This would be analogous to a blocked artery in a human.
2) The use of energy products is hidden deeply within the economy. As a result, many people overlook their significance. They are also difficult for researchers to measure.
It is easy to see that gasoline provides the energy supply needed for our cars, and that electricity provides the power needed to clean our clothes. What is missing? The answer seems to be, “Everything that makes humans different from wild animals is something that was made possible by the use of supplemental energy in addition to the energy from food.”
All goods and services require the use of energy. While some of this energy use is easy to see, other portions are well hidden. Energy used in manufacturing and transport is most visible; energy used in services tends to be hidden.
Governments are major users of energy, both for their own programs and for directing energy use to others. Retirees get the benefit of goods and services made with energy products through pension checks issued by governments; researchers get the benefit of goods and services made with energy products through research grants they receive. Wars require energy.
Medical treatments are possible because of the availability of medicines and equipment made with energy products. Schools and books, as well as free time to study in schools (rather than working in the field), are possible because of energy consumption. Jobs of all kinds require the use of energy.
One thing we don’t often consider is that if energy supplies are growing sufficiently, they permit an expanding population. In fact, expanding population seems to be the single largest use of growth in energy consumption (Figure 1). Growing energy consumption also seems to be associated with prosperity.

Figure 1. World energy consumption growth for ten-year periods (ended at dates shown) divided between population growth (based on Angus Maddison estimates) and total energy consumption growth, based on the author’s review of BP Statistical Review of World Energy 2011 data and estimates from Energy Transitions: History, Requirements and Prospects by Vaclav Smil.

Figure 1. World energy consumption growth for ten-year periods (ended at dates shown) divided between population growth (based on Angus Maddison estimates) and total energy consumption growth, based on the author’s review of BP Statistical Review of World Energy 2011 data and estimates from Energy Transitions: History, Requirements and Prospects by Vaclav Smil.

3) Prices of energy services need to be low relative to overall costs of the economy. Falling energy costs relative to overall GDP tend to encourage economic growth.
Most economists expect energy prices to represent a large share of GDP costs, if energy is truly important. The statement above says the opposite. There are at least two reasons why low energy prices, and energy prices that are truly falling when inflation and productivity changes are considered, are helpful.
First, tools (broadly defined) used to leverage the labor of human workers often require considerable energy to manufacture and operate. Examples of such tools include computers, machines used in manufacturing, vehicles, and roads for these vehicles to drive on. The lower the cost to purchase and operate these tools, relative to the benefit of the tools, the more likely employers are to purchase them. If energy costs tend to fall over time, it becomes progressively easier to add more tools to leverage the labor of employees. Thus, employees become increasingly productive over time, raising the economy’s output of goods and services. For a similar reason, rising energy costs, if not offset by efficiency gains, present a barrier to economic growth.
Second, if the cost of energy production is low, it is easy to tax energy producers and thereby capture some of the benefit of their energy for the rest of the economy. If there is truly a “net energy” benefit to the economy, this is one way it gets transferred to the rest of the economy.

Read more on the original  The world’s weird self-organizing economy