Relativity helps us to understand that there is more than one way to see everything. That doesn’t mean everyone’s perspective is equally valid, only that we might not have the most complete view into a problem or situation.

The most important thing to remember is that all of these models are tools. You are meant to try them out, play with them, and learn what you can use each of them to fix. Not all tools are useful for all problems, and just like a traditional toolbox has a hammer when you need to pound a nail but a wrench for when you need to turn a bolt, you ‘ll

Not every model applies to all situations. Part of building a latticework of mental models is about educating yourself regarding which situations are best addressed by which models.

Taking action that works with the world is more effective, less stressful, and ultimately more rewarding. We don’t waste our time fighting to accomplish the impossible.

All of this success was due to trying to answer one question, ‘How can I work with the world, not against it?” As Czerski concludes, “Instead of fighting the inexorable expansion of the ice, [the Fram] had used it to ride across the top of the world.”

Nansen did not try to improve on the design of existing boats. Instead, he let the reality of ice expansion determine the design of his ship. The Fram floated across the

Reciprocity can be summed up like this: when you act on things, they act on you.

Jet propulsion only works if the forward push is stronger than the forces acting on the object, like air friction and its own weight.

propulsion is a force that drives an object forward.