The hottest Science Substack posts right now

And their main takeaways
Category
Top Science Topics

People Play Coordination Games - Coordination II

Living Fossils • 3 implied HN points • 06 Mar 24
🔬 Science Language Communication Beliefs Culture
  1. Humans use language to efficiently convey ideas and thoughts, making it the ultimate coordination game of transferring information.
  2. The shared sound/idea mappings among groups of people in language are a result of solving coordination problems to move information effectively.
  3. Differences in language sound/idea mappings across groups exist due to multiple equilibria in coordination, showcasing the complexity of language evolution and usage.
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Axial Discovery - Immunometabolism

Discovery by Axial • 6 implied HN points • 14 Mar 23
🔬 Science
  1. Metabolism in tumor microenvironments affects immune cell function and responses to therapies.
  2. Companies are exploring targeting metabolism to treat cancer, but the field is complex.
  3. Opportunities in immunometabolism research include measuring metabolic differences, assessing immune cell requirements, and targeting weak spots for new medicines.

Seeing like a system

Perambulations • 3 implied HN points • 01 Mar 24
🔬 Science Systems Interdisciplinary Complexity Philosophy
  1. Systems often have hidden complexities that grow beyond their initial purpose, leading to unintended consequences.
  2. Systems can become rigid and resistant to change, focusing on perfecting past plans rather than adapting to new challenges.
  3. Understanding how systems function can help us critically analyze and navigate the systems we interact with in our daily lives.

Why Are We Screwing Over Researchers Who Make Innovative Discoveries?

The Good Science Project • 3 HN points • 27 Feb 24
🔬 Science Innovation Research Patents Entrepreneurship
  1. Current federal law grants universities patent rights over discoveries made with federal funding, hindering researchers' control over their work.
  2. The case of Katalin Karikó highlights how universities may profit substantially from researchers' work despite mistreatment and lack of support.
  3. Empirical evidence suggests that granting professors control over patenting their discoveries, rather than universities, is likely to boost innovation and entrepreneurship.

An Argument for Nuclear Energy

An Interpersonal Journal • 1 HN point • 05 May 23
🔬 Science Nuclear Energy Renewable Energy Fossil fuels Environmental Impact Energy Production
  1. Nuclear power is cleaner and safer than coal combustion, despite rare incidents of radiation leaks.
  2. Nuclear energy has lower emissions throughout the entire production process compared to coal, making it a more environmentally friendly option.
  3. Nuclear waste management and disposal are handled more effectively than coal combustion waste, making nuclear energy a better long-term solution.

EEGs: What Can They Do?

Rough Diamonds • 3 implied HN points • 27 Jan 24
🔬 Science Neuroscience Psychiatry Neurotech
  1. EEGs measure brain activity by recording fluctuations in electrical signals.
  2. Different brain wave frequencies on EEGs correspond to different mental states like sleep, relaxation, alertness, and conscious perception.
  3. Consumer-grade EEG devices are noisier than clinical ones but can still provide useful insights into brain activity, especially for applications like monitoring drowsiness or stress.

Can Large Language Models Reason?

AI: A Guide for Thinking Humans • 4 HN points • 10 Sep 23
🔬 Science Reasoning Language Models Evaluation Pattern matching
  1. There is a debate about whether large language models have reasoning abilities similar to humans or rely more on memorization and pattern-matching.
  2. Models like CoT prompting try to elicit reasoning abilities in these language models and can enhance their performance.
  3. However, studies suggest that these models may rely more on memorization and pattern-matching from their training data than true abstract reasoning.

How large that number in the Law of Large Numbers is?

The Palindrome • 4 implied HN points • 04 Sep 23
🔬 Science Probability
  1. The term 'large' is relative and depends on what you are comparing it to.
  2. The Law of Large Numbers states that sample averages converge to the true expected value as the number of samples increases.
  3. The speed of convergence in the Law of Large Numbers depends on the variance of the sample, with higher variance leading to slower convergence.

Why does gradient descent work?

The Palindrome • 5 implied HN points • 06 Apr 23
🔬 Science Mathematics Machine Learning Optimization
  1. In machine learning, gradient descent is used to find local extrema by following the direction of steepest ascent or descent.
  2. Understanding derivatives helps us interpret the rate of change, such as speed in physics.
  3. Differential equations provide a mathematical framework to understand gradient descent and optimization, showing how systems flow towards equilibrium.

How common is scientific fraud?

More is Different • 4 implied HN points • 05 Aug 23
🔬 Science Fraud Data Biomedical
  1. Scientific fraud is more common than many realize, with notable cases surfacing across various fields.
  2. Fraud in research can range from fabricating data to using improper methods, and can have serious consequences for science and public health.
  3. Studies show that rates of fraud vary between fields, with a significant portion of researchers admitting to engaging in questionable research practices.

The problem with isochrones: overcoming false precision in drive time maps

Expand Mapping with Mike Morrow • 3 HN points • 15 Dec 23
🔬 Science Mapping Accuracy Uncertainty Transport Data Visualization
  1. Drive time isochrones can give a false sense of precision because they are based on average traffic conditions, which can vary greatly.
  2. Improving isochrone accuracy can be done by increasing the number of trips, testing different conditions, and varied departure angles.
  3. To better communicate uncertainty, consider simplifying isochrone shapes and creating bands to show the range of possible outcomes.

AI to Interpret Your Mind

Reasons to Be Optimistic • 4 implied HN points • 21 Jul 23
🔬 Science Neuroscience Imaging Machine Learning Research Brain Activity
  1. Machine learning models can interpret human thoughts from brain scans, reconstructing images seen by individuals.
  2. Historical developments in noninvasive brain imaging, like MRI and fMRI, have paved the way for advancements in understanding the human brain.
  3. Recent progress in brain image reconstruction using technologies like transformers and diffusion models show promising potential for capturing and reconstructing multi-frame thoughts and experiences from brain scans.

The Computer Scientist's Guide to Graph Theory, ep. 02

The Palindrome • 3 implied HN points • 13 Dec 23
🔬 Science Graph Theory Algorithms Mathematics
  1. Matching problems can be modeled using bipartite graphs where no edges go between vertices of the same type.
  2. In graph theory, a full matching of one partition of a bipartite graph implies that every vertex in that partition has at least as many neighbors in the other partition.
  3. Hall's theorem provides a necessary and sufficient condition for determining the existence of a full matching in a bipartite graph.

The game theoretical foundations of morality

Optimally Irrational • 4 implied HN points • 15 May 23
🔬 Science Game Theory Morality Behavior Evolution Cooperation
  1. Game theory shows that cooperation can be rational even in self-interested settings like the Prisoner's Dilemma.
  2. The Folk Theorem explains how sustained cooperation can emerge in repeated interactions through strategies like tit-for-tat.
  3. Simple and intuitive reciprocity-based strategies like tit-for-tat can be successful in promoting cooperation and may underlie our moral intuitions.

The meaningless computer worlds of cognitive science

Meaningful Particulars • 3 HN points • 06 Oct 23
🔬 Science Cognitive Science Culture Meaning Interdisciplinary
  1. Cognitive science shifted focus from meaning to information processing with the rise of the computational model.
  2. The narrative mode of cognition, based on intentions and beliefs, is as essential as logical paradigmatic thinking.
  3. Human self-understanding is influenced by cultural meanings and narratives, not just objective biology.

I Saw a UFO and Cried

Pryor Questions • 3 HN points • 20 Sep 23
🔬 Science Space Astronomy
  1. The author mistook Elon Musk's Starlink satellites for a UFO while on a plane journey.
  2. Seeing the satellites made the author reflect on humanity's intrusion in the untouched night sky.
  3. Despite the disappointment, the author found some humor in the situation, mentioning seeing two 'UFOs' inside the plane.

How a Study Can Show Something to Be True When It’s Completely False — Regression to the Mean

Harnessing the Power of Nutrients • 59 implied HN points • 01 Apr 11
🔬 Science Research Bias Statistics Evidence
  1. Studies can mistakenly show false results as true due to regression to the mean, a common phenomenon in research.
  2. Research results can be influenced by statistical artifacts like regression to the mean, highlighting the importance of critical evaluation of study data.
  3. Proper randomization is crucial in research to avoid misleading results caused by regression to the mean.

Secularization Comes for the Religion of Technology: Or, how to make sense of techno-optimist manifestos, the Open Ai/Altman affair, EA/e-acc movements, and the general sense of cultural stagnation

The Convivial Society • 2 HN points • 23 Feb 24
🔬 Science Technology History Culture Religion Society
  1. Secularization has affected the dominant religion of technology, shifting cultural beliefs and values.
  2. The concept of the 'religion of technology' involves a deep entanglement of religious and techno-scientific elements over time.
  3. The religion of technology peaked in the 1939 New York World's Fair, exemplifying a moment of cultural dominance that has since waned.

🌿 Algae domestication program wins Seaweed Ideathon

paxtier • 2 implied HN points • 25 Feb 24
🔬 Science Aquaculture Biotechnology Marine Biology Sustainability
  1. An algae domestication program won a Seaweed Ideathon, focusing on sustainable agriculture practices and biostimulant production.
  2. Investors are showing interest in aquaculture technology, with significant funding rounds announced for seaweed-derived products and sustainability initiatives.
  3. Job opportunities in the seaweed and microalgae industry are on the rise, with companies like PhycoWorks and GreenWave actively recruiting for various positions.

Is probability frequentist or Bayesian?

The Palindrome • 3 implied HN points • 14 Aug 23
🔬 Science Probability Theory Bayesian Mathematics Statistics
  1. Probability is a number that quantitatively measures the likelihood of events, always between 0 and 1.
  2. Probability is a well-defined mathematical concept, separate from how probabilities are assigned.
  3. The frequentist and Bayesian schools of thought differ in how they assign probabilities, but each has its own advantages in different situations.

Prisoners of our genes or masters of our destiny?

Klement on Investing • 2 implied HN points • 16 Feb 24
🔬 Science Psychology Genetics Econometrics Environment Behavior
  1. Our risk and time preferences are influenced by a mix of genetics and environment, with the unique environment playing a significant role.
  2. Despite genetic influences, the most crucial factor driving our preferences and decisions is our unique life experiences and choices.
  3. We have the power to shape our destiny regardless of genetic predispositions or shared environments. What we make of our lives is ultimately up to us.

Conspiracy theory: Electric cars make more air pollution than gas cars

DYNOMIGHT INTERNET NEWSLETTER • 3 HN points • 27 Jul 23
🔬 Science Environment Emissions Technology Research Regulations
  1. Modern gas engines are so clean that exhaust is negligible compared to brakes, tires, and road dust.
  2. Heavier cars create more particulate air pollution from brake and tire emissions.
  3. Electric cars may have higher tire emissions due to weight, but their regenerative brakes make them cleaner overall compared to gas cars.

Noninvasive Brain Activity Imaging

Rough Diamonds • 2 HN points • 05 Jan 24
🔬 Science Medical Devices Neuroscience
  1. Noninvasive brain activity imaging allows for measuring and mapping brain activity without surgery or bulky machines.
  2. Different imaging modalities like fNIRS, functional ultrasound, and portable MEG offer varying levels of convenience, spatial resolution, and depth of brain activity detection.
  3. Innovations like functional ultrasound and OPM-MEG show promise in providing noninvasive and portable options for measuring brain activity.