#self-evident

#self-evident

The illusion is the latest masterpiece from Olivier Redon, a French-American inventor, who has had his creations used in museums and on TV programmes around the world. For today's puzzles, I present five of Redon's most brilliant images. The challenge is to figure out how he managed to create them.

Attention is the brain's filtering mechanism; what passes through that filter is what gets encoded. What gets encoded becomes memory. And memory is the raw material of identity. So in the architecture of your identity, attention is the doorway.

In antiquity, many opined about "the elements" in combination. Around 2500 years ago, Leucippus and Democritus founded the idea of atoms. Perhaps everything, they opined, was composed of indivisible building blocks. In the late 1700s, hydrogen and oxygen were discovered. Circa 1804, John Dalton revived atomism to explain chemical behavior. Then in 1869, Mendeleev developed the periodic table: organizing the atoms.

This is a tough time for politics in America. But it's an extremely interesting time for those of us who wrestle with the nature of reality. As a psychiatrist who has treated people with psychosis for over 20 years, I have lived in the uncomfortable space between their experience of reality and mine and I have worked to change beliefs that are some of the most resistant to change: delusions.

Plato's choice of this word is deliberate. He is not describing neutral carriers. He is describing people whose job is manufacturing a convincing reality for an audience that cannot see behind the curtain. Here is what matters clinically: the conjurers are not necessarily villains. They may be devoted parents, conscientious teachers, or well-meaning community leaders.

Ever caught yourself scrolling through your phone for hours, not really looking for anything specific, just... scrolling? I used to do this constantly, especially during those four months after being laid off when I was freelancing and questioning everything about my life. It wasn't until I stumbled across research on emotional emptiness that I realized this mindless scrolling was actually a classic sign of something deeper... a void I was desperately trying to fill with endless content that never quite satisfied.

Metaphors are linked to how we experience the world around us, according to seminal work by researchers George Lakoff and Mark Johnson. In English, we "move forward" with our lives and don't "retreat into" the past. We speak about people who are "cold as ice" and "heavy" matters we need to resolve. Some of these metaphorical expressions are more than just, well, expressions-they are actually based on our sensory experiences. This mind-body link is called "embodied cognition."

Take the sur­prise some have expressed in recent years upon find­ing out that the expres­sion to "pic­ture" some­thing in one's head isn't just a fig­ure of speech. You mean that peo­ple "pic­tur­ing an apple," say, haven't been just think­ing about an apple, but actu­al­ly see­ing one in their heads? The inabil­i­ty to do that has a name: aphan­ta­sia, from the Greek word phan­ta­sia, "image," and prefix - a, "with­out."

Ever notice how the loudest person in the room often gets credited as the smartest? We've been conditioned to equate intelligence with quick comebacks, perfect grades, and the ability to dominate every conversation. But here's what psychology tells us: true intelligence often operates in the background. It shows up in the way you question things, how you process emotions, and even in those moments when you feel like you don't know enough.

In my previous post, I summarized my response to Christian de Weerd, who denied that a Darwinian approach to consciousness is even possible. I argued that consciousness science has unnecessarily insulated itself from the evolutionary tools that revolutionized our understanding of every other biological phenomenon, and that treating human consciousness as the paradigm case distorts our picture of consciousness as a natural phenomenon spanning millions of species across millions of years.

A drawn circle is at least something physical. You can see it, touch it, erase it. The skeptic can still say, "Circles are grounded in physical reality. Justice is different; it's just an idea in your head." So let's talk about the number two. Point to it. Not two apples, not two fingers, not a numeral on a page-that's just a symbol.

Or maybe you've found yourself picking apart why someone's success "isn't that impressive" when deep down, you know you're just feeling bitter about it? I've been there. More times than I'd like to admit. And after years of digging into the psychology behind human behavior and interviewing over 200 people about their professional journeys, I've discovered something fascinating: that resentment we feel toward others' success? It's rarely about them. It's almost always about the uncomfortable truths we're avoiding about ourselves.

For most of my life, I thought of myself as a fixed entity: This is me. These are my traits. This is who I am. I assumed I was essentially that same person who loved sugary cereal at age 8, fried chicken at 12, and tequila at 21, and who still loves those things now, even if my stomach disagrees. But this is an illusion. Neuroscience, physics, and Buddhism all agree: There is nothing fixed about us-not even close.

The word umwelt comes from biology, coined by ethologists studying animals in their natural habitats. It refers to the world as an organism can perceive it, based entirely on its sensory equipment. A bat's umwelt is built from echo. A dog's from scent. A tick's world is dominated by a single chemical cue that tells it when to drop from a branch onto a passing mammal.

Many philosophers strike me as like Polish apparatchiks in 1983-they turn up to work and do what they did yesterday just because they don't know what else to do, not because they seriously believe in the system they are maintaining. I think it's not been fully appreciated how much of a blow it is to the confidence of the field's youth that scientific ambitions are increasingly abandoned as untenable.

This story is about complexity, advanced math, cognition, and machine computation. But hold on. For this exercise, my task is to take this complex idea and reduce it-to simplify it into something less daunting and (I hope) a bit easier to understand. So, let's take a step back. My bet is that most of us learned our first piece of geometry with two letters: x and y.

A professional philosopher outside the academy walls can act as a popularizer (the goal here is to make philosophy more accessible to the general public), an applied ethicist (the major task is to offer an analysis of various specific moral issues that arise within a society), and a public intellectual (I limit this role to questions that have political connotation). Of course, there are overlaps between these roles and they certainly do not exhaust all possible forms of public engagement of a professional philosopher.

In January 1986, NASA engineers knew the Space Shuttle Challenger's O-rings had never been tested in freezing temperatures. They recommended delaying the launch. Managers asked: Could the engineers prove it was unsafe? They couldn't-they could only say the system hadn't been designed for these conditions. Under pressure, the engineers withdrew their recommendation. The next morning, Challenger broke apart 73 seconds after launch, killing all seven astronauts.