The ideas behind the physics,
taken at length.
Long, playable essays on quantum interpretation, entropy and the arrow of time, the foundations of motion and the shape of infinity.
Four essays · 36 exhibits to play · one instrument
Four published · One in progress
In each one you take a side, predict what happens, play the exhibits and see what changed.
From Atoms to the Wave Function
Is reality made of tiny bits of matter sitting somewhere, or of something spread across all of space?
The Measurement Problem That Won't Die
Copenhagen, many-worlds and pilot-wave give different answers to what a measurement is, and the question is still open after a century.
Why Time Has a Direction
Cups break and do not put themselves back together, yet the laws underneath allow both directions equally.
Whose Motion Is It, Really?
Frames of reference, the Copernican turn, and how the motionless Earth was slowly given up.
More Than One Infinity
Cantor on the sizes of infinity, and why the continuum hypothesis can be neither proved nor refuted.
An instrument, not a quiz. Eight questions, one commitment each.
Where do you stand on quantum mechanics?
Physicists agree on the predictions. They have never agreed on what the theory says the world is like. Answer eight questions and see where your answers land — on a named interpretation, in unclaimed territory, or in conflict, with a theorem or with each other. It names the costs of where you land. It does not tell you which position is true.
Take the instrument →Ideas worth the depth.
Long essays on quantum interpretation, entropy and time, the foundations of motion and the sizes of infinity. No drills, no syllabus: the idea, taken seriously.
Read the next one.
One email when a new essay goes up. Nothing else.