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"With each interaction, Alexa is training to hear better, to interpret more precisely, to trigger actions that map to the user's commands more accurately, and to build a more complete model of their preferences, habits and desires. What is required to make this possible? Put simply: each small moment of convenience - be it answering a question, turning on a light, or playing a song - requires a vast planetary network, fueled by the extraction of non-renewable materials, labor, and data. The scale of resources required is many magnitudes greater than the energy and labor it would take a human to operate a household appliance or flick a switch. A full accounting for these costs is almost impossible, but it is increasingly important that we grasp the scale and scope if we are to understand and govern the technical infrastructures that thread through our lives. III The Salar, the world's largest flat surface, is located in southwest Bolivia at an altitude of 3,656 meters above sea level. It is a high plateau, covered by a few meters of salt crust which are exceptionally rich in lithium, containing 50% to 70% of the world's lithium reserves. 4 The Salar, alongside the neighboring Atacama regions in Chile and Argentina, are major sites for lithium extraction. This soft, silvery metal is currently used to power mobile connected devices, as a crucial material used for the production of lithium-Ion batteries. It is known as 'grey gold.' Smartphone batteries, for example, usually have less than eight grams of this material. 5 Each Tesla car needs approximately seven kilograms of lithium for its battery pack. 6 All these batteries have a limited lifespan, and once consumed they are thrown away as waste. Amazon reminds users that they cannot open up and repair their Echo, because this will void the warranty. The Amazon Echo is wall-powered, and also has a mobile battery base. This also has a limited lifespan and then must be thrown away as waste. According to the Ay

The damage we are not attending to is the deeper nature of the crisis-the collapse of multiple coupled complex systems. Societies the world over are experiencing what might be called the first complexity crisis in history. We should not have been surprised that a random mutation of a virus in a far-off city in China could lead in just a few short months to the crash of financial markets worldwide, the end of football in Spain, a shortage of flour in the United Kingdom, the bankruptcy of Hertz and Niemann-Marcus in the United States, the collapse of travel, and to so much more.

Great powers rise and fall, shaping each transitional period of global power shift and its geographic concentration. Currently, the world is witnessing a profound transformation in the geopolitical arena of international affairs. For the past years, the pundits have been propagating the emergence of an Asian multipolar century, with a shift from the Atlantic to the Pacific realm. However, following the COVID-19 virus outbreak, this year marks the obvious manifestation of an Indo-Pacific decade, with the US, China, and potentially India being the main protagonists in an emerging competition. This time, it is the unfolding of regional centres of power, which create the delusive impression of multipolarity, while in fact a new systemic bipolarity between the US and China comes to light. In the post-COVID-19 global context, the virus has become a catalyst of multiple systemic changes, inducing ad hoc constellations of regional actors-shaped by their geopolitical and geoeconomic interests-in a changing global order with eroding multilateral structures.

A team of researchers from the U.K., China, and Italy has found evidence that suggests oxygen depletion in the world's oceans led to the end-Triassic mass extinction. In their paper published in the journal Science Advances, the group describes their study of ancient rocks found in multiple locations around the world.

Throughout the Holocene, societies developed additional layers of administration and more information-rich instruments for managing and recording transactions and events as they grew in population and territory. Yet, while such increases seem inevitable, they are not. Here we use the Seshat database to investigate the development of hundreds of polities, from multiple continents, over thousands of years. We find that sociopolitical development is dominated first by growth in polity scale, then by improvements in information processing and economic systems, and then by further increases in scale. We thus define a Scale Threshold for societies, beyond which growth in information processing becomes paramount, and an Information Threshold, which once crossed facilitates additional growth in scale. Polities diverge in socio-political features below the Information Threshold, but reconverge beyond it. We suggest an explanation for the evolutionary divergence between Old and New World polities based on phased growth in scale and information processing. We also suggest a mechanism to help explain social collapses with no evident external causes.

To control an epidemic, authorities will often impose varying degrees of lockdown. In a paper in the journal Chaos, scientists have discovered, using mathematics and computer simulations, why dividing a large population into multiple subpopulations that do not intermix can help contain outbreaks without imposing contact restrictions within those local communities.

In the few studies and examinations which exist, in using Treasury securities it's been figured these collateral re-pledging and rehypothecation chains average multiples of six to eight; meaning, that a single UST security might be reused for book and customer business six to eight times. Between 85% and 90% of all Treasuries taken on dealer books are re-used in some fashion. No wonder these banks might become skittish, and why Treasury (and similar collateral) prices remain the way they are. The value in UST's isn't as an investment; it's the liquidity premium demanded by a fragile global monetary system. These are balance sheet tools whose worth is derived from what central bankers and bank regulators (same thing) are in no rush to comprehend.

Wheat is a staple food across all parts of the world and is one of the most widely grown and consumed crops7. As the human population continues to grow, wheat production must increase by more than 50% over current levels by 2050 to meet demand7. Efforts to increase wheat production may be aided by comprehensive genomic resources from global breeding programs to identify within-species allelic diversity and determine the best allele combinations to produce superior cultivars2,8.