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Ask HN: What's the most valuable thing you can learn in an hour?

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Re: Ask HN: What's the most valuable thing you can learn in an hour?

#611

Earlier quoted context omitted.

I have many reservations and am very critical of the financial system. But the concept of interest on loans is not a "scam'. The interest in it's simplest form is just a value appreciation of the time value of money [1]. Would you rather have $100 today, or $100 next month? How about $100 today vs $102 next month? Still rather in the today camp? How about $105 next month? That is the interest. It is the value derivat…

I didn't say interest on a loan was a scam I think compound interest on mortgages is. A fixed price interest would make sense like you borrow £100 , you pay back £110. 10% interest. But my understanding on a compound interest mortgage is the bank says something like 2% interest. and they take the £100 and x by 1.02 and just spam ='s on the calculator until the actual interest percentage is like 180%. You shouldn't ha…

That's what the 'A' in APR means. It's pretty clear.

If I take out a £100000 loan with an APR of 2% and pay it back in full at the end of the first year, then the total amount I pay back is £102000. Apart from any early repayment charges, the original total term is irrelevant.

When taking out such a large sum, over such a duration for buying your home, the total amount to repay is not the important aspect. It's not like taking out a loan to buy a car or a holiday. You don't have the option of choosing between buying now with a loan, or saving up for a few more months or years to buy without one.

Affordability of the regular repayments over the duration of the loan is the key thing.

There is absolutely no way I would take out a loan of that size with fixed interest in the way you describe. It would be far too expensive, and give the bank too much power.

I'm relying on the fact that I can make large overpayments in order to own my home outright halfway through the original term. That couldn't happen without an annual interest rate. In fact, the most logical thing to do in that situation is to stretch the loan out for as long as possible, so that inflation makes your repayments cheaper.

For a rough example -

Imagine you bought a house for £100K 5 years ago, the interest is such that over 20 years it will cost £150K total (e.g. 3.5% over 25 years).

You have probably paid about 30K, taking about £15K off the capital.

You sell the house for the same amount you bought it. With annual interest, you owe the bank £85K, you give them that, and use the spare 15K for your next home.

With a fixed price, you still owe the bank £120K. You give them the £100K you got from selling the house, and you somehow have to find £20K to pay them the rest.

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#612
Here are a couple that have changed my life:

- Learn the basics of how to meditate. Any of the top guided meditation mobile apps is enough to get started, as is an hour with a teacher.

- Learn to create a WordPress blog. Doing this was the first step on my path to becoming a developer, learning about online marketing and even meeting some of my best friends!

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#613
post #474

On the contrary, it has taken me years to unlearn compound interest. When you start with relatively little, compound interest is relatively very unhelpful - it compounds wealth and benefits people who have started with something more than you. Twice as good at nothing is still nothing.

Alright, I'll bite. This is such a victimhood mentality and a ridiculous statement. I wasn't wealthy when I started investing. Hell, the first dollar I put into my long term portfolio was when I was living in my car! I started with ~$200 that I made from doing a collection of odd jobs (mowing lawns, computer repair, moving dirt, etc.). Every extra penny I made went into investing into a moderate portfolio focusing on…

Honest question: What's the distribution of savings going into your portfolio in those 10 years?

Quick napkin math doesn't grant you any "great passive income" from "$200" and "extra pennies" for 10 years.

I'm not trying to be rude, but with incomplete data you're sending both the signals you want, as well as completely opposite signals. The latter suggest that in reality you just made a lot of money for the last 5+ years, which completely invalidates what I think you wanted to convey.

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#614
Learn to sit "zazen" (seated meditation). Even 30 minutes is enough to convey the basics of posture, breathing technique, and context; actually practice a first meditation for 10 minutes; and briefly discuss afterwards. I received such instruction following my cancer diagnosis about 7 years ago, and have made meditation part of my daily ritual ever since. It's been transformative.

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#616

On the contrary, it has taken me years to unlearn compound interest. When you start with relatively little, compound interest is relatively very unhelpful - it compounds wealth and benefits people who have started with something more than you. Twice as good at nothing is still nothing.

Compound interest works in both directions. Those w/ few resources are at risk of taking on debt -- which can quickly become crippling thanks to compound interest charged by lenders. I'd argue that understanding the perils of compounding interest on debt is even more important than understanding the benefits wrt investment.

[EDIT: PS Apparently Albert Einstein agrees:

>"Compound interest is the eighth wonder of the world. He who understands it, earns it ... he who doesn't ... pays it."

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#617
post #406

Earlier quoted context omitted.

I think a seriously overlooked application of this principle is in nutrition and dieting. Over- or under- eating by a small percentage of your required intake might not have a discernible effect immediately but really adds up over time, both for weight loss and gain.

I am pretty sure that only applies to certain people. I stay fairly skinny no matter what, though I do move about a lot.

Nonsense. Eat 4000 calories a day, every day, and lift heavy weights. You will quickly gain lots of weight.

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#619

How to cook for yourself, really, really good food. I no longer crave restaurant food, and all of the really important things I learned about cooking take just the time to read it, hear about it and then try it. All without any special hardware. A few examples: 1. Cooking jasmine rice: rinse it first, 1 c. water to 1 c. rice ratio. Bring to boil, turn down heat to lowest setting. Leave lid /the entire time/. Fluff th…

You mentioned cooking jasmine rice using a 1:1 ratio of water to rice, but rice generally can't be cooked using a linear ratio like this. As you increase the amount of rice being cooked, and change the size/shape of the cooking vessel, more of the water will be lost as steam. It's easiest to use a rice cooker, which will allow you more flexibility with regards to how much water/rice you used, but if you don't have a…

OP didn't say anything about ratios or scaling, just offered 1c rice as that's generally enough for 2-3 servings at a time. And it just happens that 1c water is generally the right amount for this and is easy to remember.

Re: Ask HN: What's the most valuable thing you can learn in an hour?

#620

Earlier quoted context omitted.

We are currently in a world where it is very difficult to find interest rates >2%. I found a tezos staking pool at approximately 5% recently.

The S&P500 with dividends reinvested has averaged a real (post-inflation) return of 7% annually over the last 100 years or so. It's currently up 24% YTD.

> The S&P500 with dividends reinvested has averaged a real (post-inflation) return of 7% annually over the last 100 years or so.

TBH I don't think looking at the last hundred years is particularly valuable. Nobody invests over a hundred year timespan. Most importantly, look at a graph of interest rates over the past 40 years. There is a fundamental "new normal" of extremely low rates (or, rather, negative rates for much of the world), making it extremely difficult to earn that 7% without taking on a very large amount of risk.

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