hypothesis

You want to know something funny? We don't actually know how our planet formed. We have a broad general idea, but the finer details are a lot trickier to unravel.We do have a model that is currently accepted as the most likely explanation so far: that Earth formed from the gradual accretion of asteroids. However, even here, there are some facts about the formation of our planet that are challenging to explain.  A new paper, combining experimentation with modeling, has revealed a new formation pathway that much more…

Photo by NOAA on UnsplashLearning hypothesis testing with an example of climate changeHypothesis testing is one of the fundamental topics in machine learning and not only. Certainly, if you are going to be given a job interview it will be one question you need to be prepared on. But why is it so important?Why Hypothesis Testing ?Suppose you are working on solving a classification problem, and assume that you are only interested in the accuracy of the result. You start by very quickly implementing a simple model A that…

A few years ago, deep beneath the Apennine Mountains in Italy, a team of physicists hunted for flashes of light that just might suggest human consciousness is the product of gravitational forces.  The fact they came up empty-handed doesn't mean we're all meat computers with no free will; it does make the quest for a suitable model explaining consciousness far more of a challenge, however.If the idea of having no free will is uncomfortable, you're not alone. In the 1990s, Nobel laureate Roger Penrose and an…

Learn once and for all what is a Hypothesis Test. Code in Python.Normal distributions. Image bby the author.Disclaimer: Hey, just to make things clear, this is not a sponsored post. I really liked the book.Hypothesis TestI recently read this nice book The Cartoon Introduction to Statistics. It brings a fun and smooth introduction to basic Statistics concepts, all presented like a comic book.One of the points that called my attention, and it is what I bring to light today, is how the author Grady Klein explains the…

Out in the dark depths of space, our models of the Universe get messy. A new study looking at the ultra-diffuse dwarf galaxy AGC 114905 has revived a controversial theory (or more accurately a hypothesis) of gravity, and given us more questions than answers about what's making our galaxies tick.  It all starts with dark matter – or in this case, no dark matter. Although most cosmologists agree there's something out there called 'dark matter', causing spiral galaxies to rotate faster than they should, even dark matter…