The Power of Thought Experiments

Einstein's most famous method for learning and discovering physics has to be the thought experiment. His ability to engage in thought experiments even served him when he ended up being wrong about the underlying physics. He showed that quantum mechanics could create changes in a system instantaneously violating the speed of light. In this case, however, Einstein's intuition was wrong. Quantum mechanical systems do behave in such bizarre ways which is now known as quantum entanglement.