Our readingWhat is a korrent?
The raw-materials cost of a rocket is only around 2 percent of the typical price of one, an unusually low ratio for a large mechanical product.
Drawn from what Elon Musk said
Subjectspace
What this subject means
space Getting off the planet, and why anybody thinks it matters.
Mental modelFirst principles
On the topicWhich mental models help you think better?under our view: Good ideas come from first principles, not from what you heard