“A central purpose serves to integrate all the other concerns of a man’s life. It establishes the hierarchy, the relative importance of his values, it saves him from pointless inner conflicts, it permits him to enjoy life on a wide scale and to carry that enjoyment into any area open to his mind; whereas a man without a purpose is lost in chaos.” – Ayn Rand
You’ve probably heard the scene before…
The young intern asks the big time Wall Street CEO,
“So, what’s your number? The amount you’d need to leave it all?”
The CEO gives a short pause, as if to build anticipation, and then responds with a slight smirk,
The catch is that additional income doesn’t buy us any additional happiness on a typical day once we reach that comfortable standard. The magic number that defines this “comfortable standard” varies across individuals and countries, but in the United States, it seems to fall somewhere around $75,000.
Using Gallup data collected from almost half a million Americans, researchers at Princeton found that higher household incomes were associated with better moods on a daily basis – but the beneficial effects of money tapered off entirely after the $75,000 mark.”
“I think it is important to reason from first principles rather than by analogy. The normal way we conduct our lives is we reason by analogy. [When reasoning by analogy] we are doing this because it’s like something else that was done or it is like what other people are doing — slight iterations on a theme.
First principles is kind of a physics way of looking at the world. You boil things down to the most fundamental truths and say, “What are we sure is true?” … and then reason up from there.
Somebody could say, “Battery packs are really expensive and that’s just the way they will always be… Historically, it has cost $600 per kilowatt hour. It’s not going to be much better than that in the future.”
With first principles, you say, “What are the material constituents of the batteries? What is the stock market value of the material constituents?”
It’s got cobalt, nickel, aluminum, carbon, some polymers for separation and a seal can. Break that down on a material basis and say, “If we bought that on the London Metal Exchange what would each of those things cost?”
It’s like $80 per kilowatt hour. So clearly you just need to think of clever ways to take those materials and combine them into the shape of a battery cell and you can have batteries that are much, much cheaper than anyone realizes.”
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