Tuesday, February 24, 2026

How to train your genie

 kw: book reviews, fantasy, archetypes, genies

At the end of the animated film Aladdin, Aladdin uses his third wish to set free the genie. I wonder if many people consider, "What will the genie do now?" Auston Habersham provides a possible answer in his novel If Wishes Were Retail.

This genie, who wishes to be called "Mr. Jinn", was imprisoned not in a lamp, but a ring, the Ring of Khorad. After 35 centuries of slavery, the genie somehow became free, and decided to try to make an honest living by selling wishes. There's more to it than that, but it would be giving away too much to say more. 

It took a little tinkering to produce this image, with the vapor issuing from the ring instead of the lamp.

The genie hires a teenaged woman named Alex (Alexandra) to manage a kiosk in a mall, while he sits on a throne behind her, mostly impassive, dispensing those wishes he is willing to grant—now that he is free to grant or deny, finally having a free will!

As you may imagine, after 3,500 years stuck in a ring, only briefly allowed out to serve whichever Master currently possesses the Ring, to grant a wish and then be popped back inside for a span of years or decades, Mr. Jinn is utterly naïve about American cultural habits of the Twenty-First Century. The novel is one of growth. The genie grows, Alex grows, her dysfunctional family even grows. But one thing remains the same: The genie realizes that human nature is still basically selfish, and finding someone with even a trace of empathy for others is a rare find. 

Emotionally and morally, humanity is about where it was in 1,500 BC and before. Even those who wish for "world peace" are seen to have selfish motives. The conclusion? Do what you can without simply taking over others' lives and decisions. It's interesting how that works out…

This book is a fun romp, a piece of speculative fiction that speculates into a broader-than-usual realm. A real page-turner!

Curious about the Ring's name, I searched around and found that Khorad is the name of several villages in India, and is the surname of several Lithuanian and Latvian families. I suspect it is transliterated from names in several languages that have the pronunciation "KO-RaD". At least in Sanskrit Khorad seems to mean entering light after a dark passage. I like that.

Saturday, February 21, 2026

Looking past old bones

 kw: book reviews, nonfiction, science, geology, paleontology, plants, evolution

Cyanobacteria, which were called "blue-green algae" when I was taking Freshman botany more than sixty years ago, arose about 2.7 billion years ago. The Earth started to become green. Before that it was primarily orange. The greening of Earth began in earnest once certain cyanobacteria became incorporated into the cells of an Archaean species to become chloroplasts in the first eukaryotic cells. Multicellularity, in the sense that among a bunch of cells that were sticking together, the cells began to have different functions, came about perhaps 1.5 billion years ago. By 1.2 billion years ago a proto-alga we call Bangiomorpha was the tallest plant in the shallows of the Precambrian ocean, being all of 2 mm tall, towering over micron-sized prokaryotes.

Bangiomorpha features in the first chapter of When the Earth was Green: Plants, Animals, and Evolution's Greatest Romance by geologist Riley Black. The chapter is titled "Sex in the Shallows" because it is pretty certain that Bangiomorpha was among the first organisms to reproduce via sexual differentiation of gametes and gamete fusion.

Side note, not related to the content of the book: The preference in nature to use DNA rather than RNA for long-term storage and retrieval of genetic information is based on its stability. RNA copying is much more prone to error, and the lack of pairing of RNA strands makes an "RNA world" very fragile. However, RNA is essential for helping DNA make copies of itself, and for translating sections of DNA into proteins. The fact that the biosphere was extremely slow to change during the first billion years after life began indicates that DNA is "too slow"! The mix-and-match processes of meiosis and gametogenesis sped things up appropriately, so that complex life could arise before the Sun burned out (not that "nature" had any idea it had such a deadline). Sex combines a level of stability much greater than an RNA basis allows, while also providing mechanisms for making changes more rapidly, particularly when small populations are isolated under adverse conditions. As you might imagine, biological theorists are still arguing strenuously about the pace of evolutionary change at various levels.

Back to the book: The fifteen chapters each tell a story of a particular organism or ecosystem, focusing on the plants. Most of paleontology is "shells and bones". Having done my time clambering over desert landscapes all over North America—as Riley Black is still doing, lucky kid!—I relate strongly to the tendency to focus on the hard bits. It is easy to climb a cliff that was a marine reef in the Pennsylvanian Era and snatch up brachiopods, bryozoans, clams, snails, and corals. The plants that accompanied them are simply not in evidence; they don't fossilize well in the gritty sands that surround the structures of the reef. And why collect fossils in deserts? I live in Delaware now, and most rocks containing fossils are buried under tens of feet of soil. In Nevada, there are lots of rocks right at the surface.

Some of the chapters tell stories that feature sundry animals, retaining the emphasis on the plants they lived among, and often upon. For example, Chapter 13, "Far from the Tree" has a proto-hyena watching two monkeys squabble on the branch of a tree in late Miocene Ethiopia, hoping one will fall. The tree is the "hero" of the story, along with the effects tree dwelling had on the morphology of the little primates. The focus of the chapter is the gradual spread of grasses as the forests retreat. 

By the way, it is stated that grasses have C3 photosynthesis, making them more efficient than trees at turning CO2 and water into carbohydrates. This is an error. Grasses are the primary C4 plants, while most shrubs and trees use the older C3 photosystem. I don't know if this is a typo; it should have been caught by the copy editor at very least (The author had a copy editor, who is named in the Acknowledgements). Anyway, to my point: Prior to the evolution of C4 photosynthesis, CO2 content of the atmosphere was nearly always between 500 ppm and 2,000 ppm. C3 plants thrive best with at least 500 ppm. C4 plants can draw down CO2 below 100 ppm, at which point most trees won't grow at all. So, you folks out there that want to grow stuff to draw down CO2, use grasses, not trees. Even at today's CO2 level of 440 ppm, the trees are struggling.

My favorite chapter is 3, "The Forest Primeval", in which the author lyrically describes aspects of life in the Carboniferous Era (as it is called in Europe; in North America this era is divided into the Mississippian and Pennsylvanian Eras).

This image I generated using Seedream V4.5 in OpenArt is not as densely packed with trees as I wanted, but it shows the alienness of the treelike species that existed at the time. Of course, I had to include an eagle-sized dragonfly. The rapid profusion of plants and their equally rapid burial, which formed our coal beds, led to a very high level of atmospheric oxygen. As the author points out, the larva of the dragonfly needed to be larger to reduce oxygen toxicity. Yet the extra oxygen also fueled the energy needed for the adult to thrive at its meter-sized length.

Had I been the publisher's editor, I might have amended the book's title to just The Earth was Green. This image of the Blue Ridge in Tennessee, from a panorama by the National Park Service, shows that Earth is very green even today:


Riley Black is a trans woman, who put the pronouns "she/they" in the author bio. Since she is at least halfway through a full physical transition, I'm willing to say "she". "They"? Not so much. I care about singular and plural. Her pronoun confusion extends to the grammar of the book, where it is applied to the creatures. Sentences with wording such as, "Now that the monkey can reach the fruit, they can…" are simply solecisms. The common usage is "it can…", which is at least genderless. Similar grammatical errors are found numerous times per chapter. It is sad. Apparently her copy editor shares her grammatical mis-education.

Ms Black's writing is lyrical and enjoyable. She has published several earlier books, and I understand all are popular. And I envy her access to so many prime fossil localities!

One last quibble: In the first chapter, describing how DNA data are mutated, the analogy of a copy of a copy of a copy in a photocopier is used. It's a very bad analogy. The successive copies gradually fuzz into meaninglessness. No new letters appear. In DNA, every "word" is exactly three letters. Every possible combination is meaningful. A DNA copy error doesn't make any fuzz, it exchanges one letter for another, or it may even add or delete a letter, causing a frame shift (frame shifts are fatal flaws).

Saturday, February 14, 2026

Getting to know a hive mind

 kw: book reviews, science fiction, mysteries, murder mysteries, space fiction, space aliens, sentient starships, writers, generated images

In the opening scene of Infinite Archive by Mur Lafferty, the protagonist, Mallory Viridian, is learning to communicate with a hive mind that consists of a large number of wasplike aliens. As I read, I realized that I would really like to illustrate the book. My "contract artist" for the images in this post is GPT-Image-1.5, accessed via Leonardo AI.

The book is chock full of ideas: multiple kinds of hive minds; aliens ranging from the Gneiss (my favorite; they are living rocks) to the Sundry (one of a few species of waspoids) to the Miu (catlike), and of course, the spaceships themselves; living libraries—both the larger spaceships and the hive minds—; language interpretation via a brain app…and so forth. The setting for most of the action is a mystery writers' convention being held on an enormous spaceship that is quite different from the others nearby at a station cluster. Mallory is a mystery writer. She also has a "talent" for being if not present, then nearby when murders happen. She solves the mystery, then writes a book about it. It's a living. In this case, communion with a hive mind, and the powers that this unlocks, are crucial to catching the murderer.

In the 2040's or so, First Contact occurred a number of years in the past (apparently about 2030), there are lots of loosely confederated alien species, and humans aren't yet trusted enough to be given the secret of space flight. But humans can apparently afford space tourism and even get jobs aboard certain ships, so they get to gallivant around the galaxy with everyone else. In a charming turn, spaceships aren't built, they are grown. Mallory has been given custody of a baby spaceship about the size of a tennis ball. It seems to be able to lift out of her jacket pocket and zip off at times, without burning anything. The drive mechanism is not mentioned. Antigrav, perhaps? By the time things get serious the little ship, named Mobius is bigger, softball sized, and beginning to look more like a rugby ball. Later on he (ships have gender) figures in a rivalry between different wasplike aliens.

It is hard to get too deep into the plot of the story without giving too much away. So let's stick with some ideas and their ramifications. Two of Mallory's allies are seen in this image, along with a catlike alien rather different from a Miu, but this is the best that the program could offer. The Miu is no ally, not quite an enemy, but definitely a player, just in another conceptual direction.

I'll skip to the convention. It doesn't get off to much of a start before there is trouble. First, Mallory's book agent is present, and tries to get her involved in a LARP (Live-Action Role Play) "game" that doesn't go well. I'll leave it to the reader to learn why she storms out. Then, it appears that some of the other authors present who have the same agent aren't all happy with one another, nor with the agent.

The convention itself kicks off with several acts including a performance by a popular Punk-ish band, apparently all human, though this isn't explicitly stated. 

During the musical performance, the first murder occurs, soon followed by a second. Mallory goes into high gear. She is now comfortable communing with, and getting help from, the Sundry hive mind she's been bonding with. This helps a lot, and I'd better leave it there.

I understand that Ms Lafferty has written other books. I plan to track them down. This one is an enjoyable romp.


Sunday, February 08, 2026

Dominance of the spineless

 kw: book reviews, nonfiction, science, oceanography, biology, invertebrates, medicine

Behold a gallery of sponge animals. They headline The Ocean's Menagerie: How Earth's Strangest Creatures Reshape the Rules of Life by Drew Harvell.

Considering the matter for a moment, I concluded that the word "reshape" in the title ought to be "reveal." I suppose the publisher thought the title as it is makes better clickbait.

The thousands (almost 10,000 so far) species of sponge comprise the phylum Porifera. Their shapes and sizes are so variable, that pores are the only consistent feature. Brainless, apparently without nervous systems, they are remarkably successful predators. Most consume plankton (little floating things), but some grow over and consume coral animals, and some have inner chambers with other critters such as shrimp living inside. The shrimp gets a safe home, and the sponge eats the leftovers the shrimp drops. Being stationary, sponges need good defenses against predation and against diseases caused by bacteria, fungi and viruses. Dr. Harvell tells us that they have the most multifarious immune system of all animals. Her particular interest is figuring out how their various chemical defenses work, and which ones might lead to medical advances for humans. She writes, "…I call the capability to produce potent biologically active chemicals a sponge superpower." Sponge research is likely to lead to either better antibiotics, or to new alternatives to antibiotics, for example.

This image shows several corals along with a variety of sea anemones, which are related to corals. Both are members of the phylum Cnidaria, which also includes jellyfish (called "jellies" by scientists because they most definitely aren't fish). The phylum contains more than 11,000 species. Though they are  brainless, they have simple nervous systems that coordinate their movements.

The basic body plan is a radially-symmetric, columnar tube with only one opening (a combined mouth-anus) surrounded by stinging tentacles. Sea anemones are larger and solitary, while corals are colonial and build skeletons; the stony corals build mineral skeletons that form the backbones of reefs.

Stony corals are the subject of the second chapter (of 8). They are considered a "canary in the coal mine" related to ocean acidification. Later in the book we find that the pH of the ocean is presently very near 8.0; elsewhere I read values ranging to 8.05. A century ago ocean pH was about 8.15

Sidebar on pH: It is a logarithm, the negative logarithm of hydrogen ion concentration in water. Pure, distilled water has pH of 7, which means that the concentration is 10-7, or one ten-millionth, or one hydrogen ion per ten million molecules of water (pH=7 is called "Neutral"). Thus a pH of 8 means one hundred-millionth. Putting these on a linear scale, adjusted with 1 meaning one per billion (pH=9) and 10 meaning pH=8, pH=8.05 converts to 8.9 and pH=8.15 converts to 7.08. Dividing the linear values, 8.15/7.08 = 1.15, which means that "acidity" is 15% greater at pH=8.05. Both these values are slightly alkaline, one more than the other.

What does 15% extra acidity mean to a coral (or any other ocean creature that uses calcite for its skeleton or shell)? Acid dissolves calcite, which doesn't dissolve when pH is 7 or larger. Acids have lower pH. For example, the pH of orange juice is about 4, and lemon juice pH is less than 3 (sour! You can taste pH). In sum, getting calcite to precipitate out of sea water is easier, and takes less chemical energy, when the water is a little alkaline. It takes a coral more energy to form its calcite skeleton at pH=8.05, compared to 8.15. Do note that fears of "shells dissolving" in the oceans any time in the near future are groundless. However, corals and shelled animals are having a little harder time forming their skeletons and shells.

On to Chapter 3, about sea fans and other gorgonians. These are also in the phylum Cnidaria, and are often called "soft corals" because they don't form rocky skeletons, using chiton or similar biopolymers instead. The word "gorgonian" refers to the Gorgon of mythology, who had snakes instead of hair on her head. An early biologist thought that these animals looked a little like that.

Collecting part of one of these is easier than collecting a stony coral: you don't need a hammer and chisel! And collecting is what the author did, of many of these creatures. Soft corals have immune defenses nearly as potent and various as sponges do, plus stinging cells like other cnidarians. Usually, the stinging cells, or nematocysts, not only immobilize prey, they also fend off most predators. Most. That word introduces the fourth chapter.

The term "sea slug" is rather ugly, because most of us know slugs in the garden as voracious pests, with slippery grayish bodies that offend most folks. I like the term "Nudibranch" better; it means "naked gills". As this illustration shows, these oceangoing mollusks are often beautiful. Being mollusks, they are members of the second largest phylum, Mollusca, with at least 100,000 species, and perhaps a million or more—we know so little about the ocean… Mollusks have a pass-through body, with both mouth and anus, plus a brain and nervous system. 

Nudibranchs' bright colors warn of a darker side to them. Many are venomous, but not in the way a snake or spider is. Many nudibranchs eat corals and other cnidarians, and they have an astounding biochemical trick: they can capture the nematocysts of their prey without setting them off and incorporate them into their own frilly tissues. Brushing up against one is like encountering a jellyfish and can sometimes be life-threatening.

The giant clam, subject of Chapter 5, is a quite different kind of mollusk, with a different superpower. They channel light and even shift its color, to "feed" symbiotic algae that provide much of the clam's nourishment.

The bright colors of their mantles are a combination of filtered light and fluorescence. Ultraviolet and violet-blue light in particular are useless for inducing photosynthesis. Fluorescent chemicals convert some of these "blue and ultra-blue" colors to colors the algae can use. In addition, the algae are arranged in small physical structures that stack them in ways that increase their overall efficiency. We have a lot to learn from clams! On a side note, we learn that these big clams cannot close their shell all the way. Old rumors about divers being trapped by giant clams are bunk.

One more group of mollusks fills Chapter 6. The skin of an octopus is possibly the most complex organ in the animal kingdom. This image shows an octopus most of the way through a rapid transition into looking like a lumpy rock. A careful look will reveal an eye, and further down, a few of the suckers that haven't yet been tucked under.

Octopuses, cuttlefish, and squids can change color, not just wholesale, but in patterns. The first two can also raise lumps, bumps and spikes in their skin to produce all kinds of shapes. A moment before this photo was taken, the octopus had smooth orange-red skin. It changed so fast that it seemed to vanish before the diver's eyes. Single frames from the video showed that the entire transformation took about a quarter second (7 or 8 frames in a 30-fps video). Great numbers of tiny muscles surround chromatocytes (color organs the size of a poppy seed) and sections of skin (to shift from flat to bumpy or spiky), under direct nerve control. Perhaps that is why an octopus or cuttlefish has nine brains. Lots of logistics going on!

Back to Cnidaria for Chapter 7: Jellies and their light shows. I have only seen these animals at the surface. On a couple of occasions my friends and I pulled dozens of 2-foot-wide jellies out of the surf at Huntington Beach in California, to make swimming safer. If you dive at night, you are more likely to see the light show. Not only jellies, but many other soft-bodies sea critters make their own light, or have captured special bacteria that do it for them. This amazing medusa has several colors of bioluminescence. It was photographed by its own light.

How poor is our land-borne experience! We have only fireflies and glowworms (certain female fireflies) and a number of other beetles to light up an evening, and a few species of glowing mushrooms. In the ocean, 90% of species produce light. Naturally, scientists are scurrying to learn their secrets. One is very useful already: green fluorescent protein (GFP), derived from a jelly. DNA to produce it is easy to splice into various parts of other animals' genomes, producing mice that glow green, or small fish with certain organs that glow with varying brightness as metabolism waxes and wanes.

Another phylum shows up in the last chapter, Echinodermata, the "spiny skins". Sea stars (colloquially, starfish) are not quite radially symmetric, as the Cnidaria are. There is a respiratory port off-center on top, making them bilaterally symmetrical, just barely.

This gallery shows 13 species of sea star, and three related echinoderms. The phylum contains more than 7,500 species so far known, while we have fossils of 13,000 extinct species. All are predatory.

This chapter focuses first on an experiment in removing sea stars from a section of seacoast. The area became overrun by mussels, which grew to the size of footballs. Where sea stars were present, there were still lots of mussels, but also areas where many other animals could settle, which greatly increased biodiversity.

More recently, there was a "starfish pandemic", and nearly all the common ochre stars along the west coast of the US and into Canada died, plus just as many "sun stars", a deep-water species with 24 arms. Over time, natural selection did its work and the numbers of ochre stars began to recover, but not, at the date of writing, the sun stars. The author and others are doing captive breeding to develop a resistant variety of sun star, in hopes of repopulating the deep coastal plain. Why, you might ask? Sun stars prey on sea urchins. If unchecked, sea urchins eat all the kelp. Kelp forests protect many species of fish and other pelagic (midwater) animals, including commercial species. Sun stars in deeper water and ochre stars in tidal areas are keystone predators: their presence controls the biodiversity of entire areas.

Throughout the book the author complains of the effects of climatic warming and ocean acidification that are based on increasing carbon dioxide in the atmosphere. In the ocean areas she frequents, the effects are visible. She calls it a Gut Punch. Her Epilogue is a long plea for more rational approaches to management of the ocean. While I agree with her on one level, I find it sad that we, as a species, find the need to "manage" 3/4 of the planet's surface. What we really need is to manage ourselves, but the lesson of the Bible, along with most other religious texts, is that humans excel at mismanagement, and any god you may imagine has a hard time keeping us in check. 

For context: The God of the Bible spent two millennia dealing with one family, the descendants of Abraham, to finally rid them of their tendency toward idolatry. He has spent the two millennia since then dealing with the spiritual descendants of Abraham, that is, the Christians, and has yet to rid them (us) of their (our) tendency to divide (there are more than 40,000 "denominations"), primarily over opinions, which are our modern idols. Mismanagement of the human soul is the source of mismanagement of planet Earth. This is why we need a Savior.