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Resources for the Future: Natural vs. Human-Created

Second, the crucial point is that there is no such thing as “natural resources.” That term implies that resources are already existing quantities that we merely have to pick up. In reality, resources are services that we derive by combining raw materials with knowledge and purpose. As Simon put it:

“…natural phenomena such as copper and oil and land were not resources until humans discovered their uses and found out how to extract and process them, and thereby made their services available to us. Hence resources are, in the most meaningful sense, created, and when this happens their availability increases and continues to increases as long as our knowledge of how to obtain them increases faster than our use of them, which is the history of all natural resources.” (p.75 footnote)

When people talk about what percentage of world resources are used up by the population of the USA they fail to recognize the creation of resources. Humans have become ever better at creating resources. Consider farmland. Farmland is not a natural resource. It requires tools and work by humans to produce what we want. And metals: Before we knew how to extract and use them, the vast amounts of tin, lead, iron, aluminum and other metals were not resources, they were merely materials. Neither oil nor gas nor petroleum were considered resources until humans saw how to use them to produce value and added our knowledge to turn minerals into resources.

Companion (2025) ⭐ 7.1

I just saw “Companion” which is set in a world about 20 years in the future and it was the first movie in quite a while that had a solid plot. I find most movies pretty frustrating as they focus on special effects instead of a coherent plot.

The less you know before you see the movie, the better. Avoiding the trailer is recommended.


Companion: Directed by Drew Hancock. With Sophie Thatcher, Jack Quaid, Lukas Gage, Megan Suri. A weekend getaway with friends at a remote cabin turns into chaos after it’s revealed that one of the guests is not what they seem.

Super-resolution microscopy achieves nanometer resolution without traditional ON/OFF switching

Overcoming the resolution limit in a light microscope of around half a wavelength of light (about 250 nanometers) is one of the most significant developments in optics. Due to the wave nature of light, even the best lens cannot produce a light spot smaller than 250 nanometers in diameter. All molecules within this bright spot are illuminated at the same time, light up together, and therefore, appear inseparable as a blurred whole.

In the early 1990s, Stefan Hell realized that molecules could be separated by briefly switching the molecular signal “OFF” and “ON” in such a way that closely neighboring molecules are forced to signal consecutively. Molecules that signal consecutively can be readily distinguished.

In fluorescence microscopy, this ON/OFF separation principle could be implemented to perfection, since molecular fluorescence can be easily switched on and off. In fact, STED and PALM/STORM, as well as the more recent super-resolution fluorescence microscopes, are all based on this ON/OFF principle.

Predatory bacteria could be used to purify water in the future, study suggests

Year 2023 face_with_colon_three


In a unique study carried out in drinking water pipes in Sweden, researchers from Lund University and the local water company tested what would happen if chlorine was omitted from drinking water. The result? An increase in bacteria, of course, but after a while something surprising happened: a harmless predatory bacteria grew in numbers and ate most of the other bacteria. The study suggests that chlorine is not always needed if the filtration is efficient — and that predatory bacteria could perhaps be used to purify water in the future.

Just as human intestines contain a rich bacterial flora, many types of bacteria thrive in our drinking water and the pipes that transport them. On the inside of pipe walls is a thin, slippery coating, called a biofilm, which protects and supports bacteria. These bacteria have adapted to life in the presence of chlorine, which otherwise has the primary task to kill bacteria, particularity bacteria that can make humans sick.

An ordinary glass of drinking water contains a lot of harmless bacteria. Chlorine, however, which in the studied piping system was added in the form of monochloramine, is not wholly unproblematic.

A Hidden Planet Revealed: Could This Be One of Our Best Chances at Finding Alien Life?

HD 20,794D, a planet six times the mass of Earth, orbits a Sun-like star just 20 light-years away. Its presence was confirmed after years of meticulous analysis, overcoming the limits of detection technology.

Although it lies in the habitable zone, its elliptical orbit presents challenges in determining its true potential for life. Future telescopes may soon provide deeper insights into its atmosphere, making this one of the most exciting exoplanet.

An exoplanet (or extrasolar planet) is a planet that is located outside our Solar System, orbiting around a star other than the Sun. The first suspected scientific detection of an exoplanet occurred in 1988, with the first confirmation of detection coming in 1992.