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Researchers from the University of Wyoming, Stanford and the University of Colorado Boulder built a simple mathematical model that shows people achieve the best outcomes when they set goals slightly above the average, but avoid extreme over‑ambition.Why Researchers Replaced “Shoot for the Moon” with “Above‑Average” TargetsThe model treats individuals as agents with a reward threshold. Agents reject offers below their threshold and accept those that meet or exceed it. By varying thresholds and reward distributions, the team discovered that agents who set modestly higher‑than‑average targets consistently outperformed both under‑ambitious and overly ambitious peers.Quantitative Findings: How Modest Over‑Ambition Beats ExtremesOptimal satisfaction occurs when the threshold is above the mean reward but not far beyond it.Agents with thresholds far above the mean performed worse than those whose thresholds were equally far below the mean.In a related marathon study cited by the authors, merely asking runners to set a goal boosted performance by 13.5%, equivalent to a nine‑year age advantage for a 42‑year‑old.Implications for Careers, Housing, and Policy DecisionsThe insights apply to real‑world choices such as salary negotiations, apartment hunting, and economic policy. Over‑ambitious expectations can lead to chronic dissatisfaction, especially when individuals compare themselves only to the highlight reels posted on social media. By recognizing the full range of possible outcomes, decision‑makers can set realistic, slightly above‑average goals that maximize satisfaction.What the Model Predicts for Future Goal‑Setting StrategiesFuture research will likely explore how dynamic thresholds adapt to changing environments and how social information influences perceived reward distributions. For now, the authors advise a pragmatic tweak to classic motivational slogans: aim a little lower than the moon, shoot for the stars you can actually see.

Giulia Brachi and her team at the University of Colorado Boulder discovered that a mildly acidic environment (pH 4) can coax Pyrocystis lunula into a prolonged glow, allowing the algae to be embedded in a hydrogel and printed into luminous shapes.Acid‑Triggered Glow Enables 3D‑Printed Living LightBy adding a slightly acidic solution to a flask of the single‑celled algae, the researchers lowered the internal pH of the light‑producing organelles, activating the luciferase‑luciferin reaction. The algae were then suspended in a water‑rich hydrogel, which served as a printable medium. Using a standard 3D‑printer, the team produced blobby forms—including a crescent moon—that radiated a vivid cyan hue.Quantifying the Light: Duration, pH, and Print ResolutionGlow duration: up to 25 minutes per acid activation.Acidic trigger: solution adjusted to pH 4, comparable to a tomato.Print medium: hydrogel encapsulation preserving cell viability during extrusion.Potential Applications from Rave Bracelets to Eco‑SensorsWil Srubar envisions “living light” replacing disposable batteries in glow‑sticks, festival bracelets, and low‑power indicators. Embedding the algae in biosensors could provide visual alerts when toxins are detected, leveraging the natural luminescence as a read‑out. The approach also promises a reduction in electronic waste, as the bioluminescent reaction requires only seawater and a mild acid.Future Outlook: Scaling Living Light for Sustainable DevicesWhile the laboratory results are promising, Chris Howe of the University of Cambridge cautions that translating the system to real‑world conditions will require robust containment and longevity strategies. Ongoing research will focus on optimizing hydrogel formulations, extending the active lifespan of the algae, and integrating control mechanisms for on‑demand illumination. If successful, bioluminescent 3D‑printing could usher in a new class of biodegradable, low‑energy lighting solutions.

Scientists have made a groundbreaking discovery that could lead to the development of new obesity drugs. By studying the unique metabolic abilities of pythons, researchers have identified a molecule that appears to play a crucial role in regulating appetite and weight loss. The molecule, called pTOS, was found to increase significantly in the blood of pythons after they eat, and when administered to obese mice, it led to a significant reduction in food intake and a 9% loss of body weight over 28 days. The discovery could lead to the development of new obesity drugs that work in a different way to existing medications, such as GLP-1 medications like Wegovy. Unlike these medications, which can have side effects such as nausea and stomach pain, pTOS appears to act on the brain's appetite centers, reducing food intake without these adverse effects. The researchers, led by Dr. Jonathan Long from Stanford University and Prof. Leslie Leinwand from the University of Colorado Boulder, published their findings in the journal Nature Metabolism. They believe that pTOS, which is naturally produced by the snake's gut bacteria and also found in human urine, could be a safe and effective treatment for obesity. While further research is needed before the findings can be applied clinically, the discovery is seen as a promising step towards the development of new obesity treatments. The study's results suggest that pTOS could be a potential therapeutic target for the treatment of obesity and related metabolic disorders.