Hume’s Is–Ought Problem
Good thinking separates facts from values. When an argument moves from what is true to what we ought to do, look for the hidden value premise.
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Master Timeline
The famous Lewis “Truth in Fiction” Paper
Fictional statements can be “true” inside an invented world, even when they are not true in actual history.
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R. G. Collingwood
Collingwood helped show that history is not just collecting facts. It is the disciplined reconstruction of past human thought and action from surviving evidence.
First Therapsids
Therapsids mark the point where the mammal-side branch became more active, more specialized, and more clearly aimed toward the later mammal body plan.
Last Non-Mammaliaform Cynodonts
Tritylodontids were not mammals, but they were late-surviving mammal-side cousins that carried many mammal-like traits without crossing into the mammaliaform line.
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Last Non-Cynodont Therapsids
Dicynodonts were late-surviving non-cynodont therapsids: mammal-side animals, but not on the direct road to mammals.
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First Crown Mammals
Crown mammals are the branch that includes the common ancestor of all mammals alive today and every descendant of that ancestor.
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Last Non-Mammal Mammaliaforms
Not every mammaliaform became a mammal; some were late-surviving side branches near the mammal line.
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First Cynodonts
Cynodonts were a more advanced branch of therapsids where the mammal-like jaw, teeth, palate, and breathing package began to come together.
Last Non-Therapsid Synapsids
Late caseids represent the fading old-line synapsids: still mammal-side animals, but not yet therapsids.
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First Synapsids
Early synapsids looked reptile-like, but they were not on the reptile line. They were the first recognizable step on the long road toward mammals.
Diatoms Emerge
Diatoms began as tiny glass-shelled “silica” algae, with round centric forms appearing first and elongated pennate forms later adding direction, symmetry, and movement to the microscopic world.
Book: The Idea of History
Collingwood helped show that history is not just collecting facts. It is the disciplined reconstruction of past human thought and action from surviving evidence.
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Albert Einstein (1879 to 1955)
Einstein taught us that mass and energy are two forms of the same thing and that gravity is better understood as the curvature of spacetime that guides motion.
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Full AI Doctor
The full AI doctor will be as smart as a team of thousands and have access to your medical history and will even suggest additional scans, changes in diet, exercise, and mental care.
Read-Only AI Doctor
Your first AI doctor will not diagnose or prescribe. It will explain and advise. By reading your records, labs, medications, and wearable data, it becomes a personal medical translator, coach, and advocate.
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Proactive AI Doctor Tipping Point
The proactive AI doctor marks the shift from reactive healthcare to continuous, personalized prevention.
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John Snow and the Broad Street Pump
The story of John Snow in 1854 reminds us that good reasoning lets confidence follow evidence, not fear, habit, or public assumption.
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Triassic–Jurassic Extinction: Volcanoes Open the Age of Dinosaurs
The Triassic–Jurassic extinction cleared ecological space for dinosaurs to become the dominant land animals of the Jurassic.
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Oceans Lose Their Breath
The Devonian extinction shows that evolution can be reshaped not by one sudden blow, but by a long collapse in ocean health.
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