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Arthur Clarke's avatar

I once suffered from spending! In the late ‘70s I developed a simple way to encourage saving. When I got my first real job in ‘74 I would earn way more that I had ever earned before. I had a short buy list—a TV &c.—and gleefully assumed that I would shortly be saving gobs of money. Five years later I was shocked—I’m not sure why it took 5 years—that I hadn’t saved much: my buy list had simply gotten longer and longer.

So one evening—I was now earning twice as much in Washington—I sat down and added up all of my contractually committed expenditures—car insurance, rental expense—, and I subtracted this sum from my expected after-tax income—W2 as a proxy. I then divided this sum by 52 to produce a weekly amount. This was my weekly spendable amount. Each week I wrote this sum on a 3x5 card, and during the week I subtracted every, I mean every, expense. Within a matter of weeks I found myself aiming to see how large a residual number I could end the week with. What I soon realized is that I had found a way to grasp the opportunity cost with every decision. This procedure soon became a habit, and since it became a habit I stopped worrying about saving.

I urge those who find it difficult saving to spend some serious time to figure out how to introduce opportunity cost In a workable manner into your daily behavior. (It might not be how I did it!) Done effectively, moralizing—thou shalt, god damnit!—will be expunged from your conscious behavior and replaced by a simple question, Do I really want to give up having this money to spend tomorrow, or the day after? Or, as Mark Twain nicely put it, Why put off until tomorrow, what you can put off another day?

I hope this will help a few readers to build opportunity cost into their daily life.

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Corduroy's avatar

Your definition of Fat FIRE is the opposite of everywhere I've seen it used.

Reference: FatFIRE Reddit group FAQ:

"FatFIRE is Financial Independence / Retire Early at an overabundant or luxurious level. Unlike FIRE (and leanFIRE in particular), FatFIRE is typically achieved through high incomes rather than minimalism or extreme frugality."

FatFIRE is not saving up enough to maintain a modest lifestyle without decreasing your standard of living. It is saving enough to maintain a life of wealth and luxury that explicitly surpasses the need for frugality.

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