“The ability to reduce everything to simple fundamental laws does not imply the ability to start from those laws and reconstruct the universe”.
P.W.Anderson

What is the most real thing in the world? Is it the number pi? Is it the quantum fields merrily vibrating us into existence? Or is it the white and black on the screen on which you are reading this text?

In describing reality, the natural sciences go through a transition from the abstract universal to the idiosyncrasies of our lived reality: from quantum physics and relativity to molecules, cells, organisms, individuals, from solving Schrödinger’s equation…

“‘Tristan und Isolde’ is the central work of all music history, the hub of the wheel… I have spent my life since I first read it, trying to solve it. It is incredibly prophetic.”
- Leonard Bernstein

Richard Wagner’s opera Tristan and Isolde from 1865 was one of the most important events in the history of classical music. Taking up the medieval story of the star-crossed lovers Tristan and Isolde that fall intensely in love after accidentally drinking a love potion, Wagner transformed the material into a spiritual reflection on love, death, and transcendence.

There is no country, no town…

The Large Hadron Collider (LHC) is one of the most intricate machines mankind has ever built. When it’s running, every second approximately one billion particles smash into each other at velocities close to the speed of light, probing physics beyond the edges of the current standard model of particle physics.

A lot can happen in these one billion particle collisions, and immense detectors are built around the ring of the LHC to not miss out on anything important. But such large quantities of collisions, coupled with complex detectors, generate a lot of data. Seriously, it’s a lot of data. …

We write the 14th century, and the times are tough. A plague is afoot, killing a third of the population in some parts of Europe, and no one really knows what is going on.

The Paris Academy, one of the major scientific institution of its day, is hard at work trying to explain the rise of what is later to be known as the Bubonic plague. After 3 years of consultation, they release a report. To their credit, it opens quite sensibly:

Seeing things which cannot be explained, even by the most gifted intellects, initially stirs the human mind to…

“Look beneath the surface; let not the several quality of a thing nor its worth escape thee.”
― Marcus Aurelius, Meditations

Science firmly rests on the power of observation. Models triumph or fall after they are compared to observations in the real world.

But in more sophisticated models, something very complicated can happen beyond the surface of what is actually being observed, and it is not always clear how to relate the limited scope of the observables available to our limited human faculties to complex underlying processes.

String theory is a prime example where extremely intricate physics are assumed to…

As the story goes, adversity builds character.

As another story goes, Ian Goodfellow was drinking was his friends one night when an idea occurred to him that would have a big impact on the landscape of machine learning. It sounded good in theory, sounded good in the realm of speculative discussion over beer among friends, but with many things that sound good in theory, it doesn’t necessarily follow that they will also be sound in practice.

So Ian Goodfellow went home and implemented his idea. It was a relatively simple idea, so it took him only a couple of hours…

Traditionally, human beings are said to have five senses: sight, hearing, smell, taste, touch.

Our senses bring us into contact with the outside world. All we know about the world has to come in through our sensory organs before it can be processed and made sense of.

Our senses have developed to serve an evolutionary need. While in our fishy ancestral times, we spent our days underwater, not being able to see very far around us, eyesight improved dramatically on land to deal with the constant threat of snakes and the likes slithering into our field of vision, threatening to…

It’s scary how much people believe in science.
Stephen Wolfram

Immanuel Kant, perhaps the most important philosopher of modernity, hated determinism. How could man retain what made him most humane in the face of the unfolding clockwork of the universe? (Wo)man, after all, is (wo)man only because she chooses, and choosing what is right allows her to act morally, allows her to realize her innermost humaneness.

If it were possible to know the position and velocity of every particle in the universe, then we could predict with utter precision the future of those particles and, therefore, the future of the…