First principles are the basic building blocks or arguments on which a concept is built. These fundamentals cannot be reduced any further and always hold true which makes arguments based on them to forget the established practices and thin creatively for solutions based on the first principles.
Diagrams
Originated from/Coined by
Elon Musk
Further Reading/ References
https://jamesclear.com/first-principles
https://en.wikipedia.org/wiki/First_principle
https://medium.com/the-mission/first-principles-and-the-art-of-thinking-like-elon-musk-98658bb36569