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It Depends if You're a Glass Half-Full or Half-Empty Type

At Think Gene, Josh Hill ponders an "inherent problem with scientific theories." There are, he says, always an infinite number of equally valid explanations since science, unlike mathematics, never has perfect information. Bayes' theorem, he adds, only give probabilities on if a particular observation was caused by a certain event. "In essence, while science finds theories that explain the observations that we see, we have no way of proving if it is the one correct theory," says Hill.

Evolving Thoughts' John Wilkins says this idea is also known as the "Pessimistic Meta-Induction" and that it is not a real problem, but just a "trick of the light." Not all possible theories are realistic theories, he says. "As theories, along with techniques, protocols, and schools of thought, compete for attention and resources, those that are more empirically adequate will tend to be adopted, reducing the space of possible models. Who cares if it's still infinitely differentiable? We know more than we did," blogs Wilkins.


The Scan

Fertility Fraud Found

Consumer genetic testing has uncovered cases of fertility fraud that are leading to lawsuits, according to USA Today.

Ties Between Vigorous Exercise, ALS in Genetically At-Risk People

Regular strenuous exercise could contribute to motor neuron disease development among those already at genetic risk, Sky News reports.

Test Warning

The Guardian writes that the US regulators have warned against using a rapid COVID-19 test that is a key part of mass testing in the UK.

Science Papers Examine Feedback Mechanism Affecting Xist, Continuous Health Monitoring for Precision Medicine

In Science this week: analysis of cis confinement of the X-inactive specific transcript, and more.