Tag Archives: epistemology

Why the scientists aren’t combining data from two experiments to get 5-sigma evidence (= “proof”) for the Higgs boson The Higgs field was postulated nearly 50 years ago, the LHC was proposed about 30 years ago, the experiments have been … Continue reading

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[T]he question of what “really” exists pervades the sciences and human thought in general. The belief that the infinite does not really exist goes back at least to Aristotle. Parrnenides even questioned the reality of plurality and change. (Einstein’s vision … Continue reading

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This gallery contains 6 photos.

data from the US Drug Enforcement Agency’s System To Retrieve Information on Drug Evidence A few points about these pictures which I’ll be elaborating on in future posts: sub i, sub j: There is significant variation from city to city and presumably dealer … Continue reading

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Null hypothesis testing is voodoo. Changes in the mental state of the experimenter should not affect the objective inference of the experiment. An argument for using Bayesian data analysis instead of H0 vs Ha. Imagine you have a scintillating hypothesis … Continue reading

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Autocorrelation

A “truly” random, uniform random, completely random sequence might look like ◯◯⨯◯⨯⨯⨯⨯◯◯⨯◯◯⨯⨯◯⨯◯◯⨯⨯◯⨯⨯◯⨯◯◯⨯◯R code: > xooooo = sample( c(“◯”, “⨯”) , 30, rep = T)  like the flips of a fair coin. But there are other “random”s as well. Biased For example, … Continue reading

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Contrary to common folklore, causal relationships can be distinguished from spurious covariations using inductive reasoning. Judea Pearl, Causality

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The word probability didn’t take on a likelihood-related meaning until maybe the 18th century. The original meaning was synonymous with “worthy of approval”. Also interesting: Ian Hacking suggests that the creation of probability & chance concepts was intimately tied to equiprobable outcomes, … Continue reading

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