Here I gather essays and thought experiments.

The nature of science, its power and limitations, and its place in a liberal education (Intended audience: lay)

The purpose of graduate physics education (Intended audience: upper undergraduate / beginning graduate)

Overview of my research field (Intended audience: undergraduate)

Thought experiment: If my hand is inside an event horizon, and my head is outside, can I see or feel my hand? (Intended audience: upper undergraduate)

Thought experiment: What would happen if nuclear fusion in a star were to magically stop? (Intended audience: first half for everyone, second half for upper undergraduates)

Question: Do tachyons really travel faster than light? (Intended audience: upper undergraduate / graduate)