Every idea, framework, and brainstorm I've put into writing — ordered by when I first thought it. 12314 items total. Click any title for the thesis card; the card links to the full essay if you want it.
Zhu et al. establish a clean causal chain: intermittent hypoxia → enhanced adult hippocampal neurogenesis → BDNF release → antidepressant-like behavior across CMS, FST, and NSF tests.
Intermittent hypoxia—repeated, controlled bouts of low oxygen—produces antidepressant-like effects in animal models by forcing the adult brain to generate new hippocampal neurons.
When you observe two expensive traits inversely correlated across many species, you're likely looking at a fundamental allocation tradeoff rather than two independent evolutionary stories.
Evolution runs on finite metabolic budgets, and the brain and testes are among the most energetically expensive tissues a body can build and maintain.
Because both neural tissue and testicular tissue are metabolically expensive, males face an evolutionary budget: invest more in one and you get less of the other.
Human male intelligence may have co-evolved with female sexual restraint. When males had to compete for access to reproductively scarce partners, cognition — not brute force — became the decisive trait.
Insulin resistance isn't just a blood sugar problem in isolation — it's a systemic failure to respond to one of the body's most important hormonal signals.
Chronic activation of the hypothalamic-pituitary-adrenal (HPA) axis does far more than affect mood — it directly promotes visceral fat accumulation, insulin resistance, dyslipidemia, and hypertension, the full cluster known as metabolic
Inflation directly reduces a currency's purchasing power, and when inflation accelerates, investors actively seek assets that resist that erosion.
Indoctrination sits structurally between Deception (upstream) and Belief (downstream), with Childhood Indoctrination as its most concentrated real-world instantiation.
Maxwell Maltz argues that indoctrination isn't only something imposed by external authorities—we hypnotise ourselves by repeating ideas to ourselves until we believe them.
When researchers broadened their definition of aggression beyond physical acts to include verbal aggression, rumor spreading, gossiping, ostracism, and friendship termination, the picture flipped—girls scored higher on indirect aggression
From an evolutionary psychology lens, men's intrasexual competition resembles a large sledgehammer—direct, visible, brute force. Women's competition operates like a poisoned arrow—indirect, covert, and often arriving without warning.
When a system produces bad outcomes, the instinct is to find the bad actor. But more often, the structure itself is the culprit — incentives quietly shape behavior while we look for villains.
FedEx was hemorrhaging on overnight deliveries until they threw out hourly pay entirely. Instead, every shift worker got paid only when all packages for the day were routed — turning individual effort into a collective finish line.
When incentives are misaligned, the system produces the wrong outcome regardless of the intelligence or intentions of the people in it. Federal Express workers weren't lazy; investment clients weren't fools. The structures were wrong.
Federal Express couldn't get its nightly hub operation finished on time despite moral suasion and threats. The breakthrough came when they switched from hourly pay to shift-based pay — finish the job, go home. Problems cleared up overnight.
Incentives are the strongest determinant of behavior in any system. When they're misaligned, you get perverse outcomes that work against the system's own goals—no amount of culture, values, or moral suasion can fully compensate.
Federal Express couldn't get planes unloaded on time using threats and moral suasion. The solution wasn't better management—it was restructuring pay from hourly to shift-based.
Wall Street's default mode — frequent trades, market commentary, constant repositioning — exists primarily to generate billable transactions, not to compound client capital.
Before trusting any advisor, manager, or expert, run a single question through their recommendation: who benefits from this decision, and how?
The incentives of an investment manager and the incentives of an investor are fundamentally opposed.
Every primary infection follows the same narrative arc in your blood: IgM rises first, peaks, then declines as B cells class-switch to IgG for long-term memory.
IgM is a pentamer — five antibody units joined by a J chain — which makes it the heaviest immunoglobulin in circulation.
A single blood draw can reveal not just whether you've been exposed to a pathogen, but *when*.
Immunocompetence operates at two distinct scales. At the cellular level, individual T and B lymphocytes must recognise specific antigens via their receptors.
The 'ideas are toys' framing deliberately strips ideas of preciousness. Toys are played with, broken, discarded, or enjoyed briefly without grief. The moment you treat an idea as a treasure to be guarded and perfected, you suffocate it.
The honest qualifier "I try" exposes a truth most people deny: pure rationality is unnatural. Emotions, identity, and prior commitments constantly tug at our reasoning.
Hyperrationality is the disciplined practice of aligning your beliefs and decisions with the best available reasoning, even when it contradicts what you want to be true.
The mechanism of hypoxic cell death follows a predictable six-step cascade: oxygen loss halts ATP production, the sodium-potassium pump fails, the cell swells with sodium and water, anaerobic glycolysis dumps lactic acid, lysosomal