A thought experiment considers some hypothesis, theory, or principle for the purpose of thinking through its consequences.
A theory is a contemplative and rational type of abstract or generalizing thinking, or the results of such thinking.
Thought refers to ideas or arrangements of ideas that are the result of the process of thinking.
An experiment is a procedure carried out to support, refute, or validate a hypothesis.
What are Thought Experiments? - Gentleman Thinker by Philosophy Tube
Given the structure of the experiment, it may not be possible to perform it, and even if it could be performed, there need not be an intention to perform it.
Top 10 Most Famous THOUGHT EXPERIMENTS by TopTenz
The common goal of a thought experiment is to explore the potential consequences of the principle in question: "A thought experiment is a device with which one performs an intentional, structured process of intellectual deliberation in order to speculate, within a specifiable problem domain, about potential consequents for a designated antecedent ".
Examples of thought experiments include Schrödinger's cat, illustrating quantum indeterminacy through the manipulation of a perfectly sealed environment and a tiny bit of radioactive substance, and Maxwell's demon, which attempts to demonstrate the ability of a hypothetical finite being to violate the 2nd law of thermodynamics.
Radioactive decay, also known as nuclear decay or radioactivity, is the process by which the nucleus of an unstable atom loses energy by emitting radiation, including alpha particles, beta particles, gamma rays, and conversion electrons.
In the philosophy of thermal and statistical physics, Maxwell's demon is a thought experiment created by the physicist James Clerk Maxwell in which he suggested how the Second Law of Thermodynamics might hypothetically be violated.
Quantum indeterminacy is the apparent necessary incompleteness in the description of a physical system, that has become one of the characteristics of the standard description of quantum physics.