This quote suggests that quantum theory, in Einstein’s view, required more mental effort or “brain grease” than relativity. The term “brain grease” is a translation of a German idiom, which essentially means mental effort or intellectual labor. Einstein is saying that quantum theory was more challenging and required more thinking and intellectual work from him than his work on relativity.
Quantum theory is a branch of physics that deals with phenomena on a very small scale, such as atoms and subatomic particles. It is known for its complexity and counter-intuitive nature. On the other hand, relativity is a theory that describes the laws of physics in relation to moving bodies and gravitation. While also complex, Einstein found it less mentally taxing than quantum theory.
This quote can be applied to today’s world and personal development in several ways. Firstly, it underscores the value and necessity of intellectual effort in understanding and solving complex problems. In the modern world, this could be applied to various challenges, from tackling climate change to developing new technologies.
Secondly, it reminds us that even geniuses like Einstein found some topics difficult to grasp. This can be comforting to those of us who struggle with understanding complex ideas or learning new skills. It’s a reminder that struggle and effort are a normal part of the learning process.
Lastly, it highlights the importance of perseverance in intellectual pursuits. Even though Einstein found quantum theory difficult, he didn’t shy away from it. Instead, he put in the necessary “brain grease” to understand it. This is a lesson that can be applied to personal development: when faced with a challenging task or concept, don’t give up. Instead, put in the necessary effort and mental work to overcome the challenge.