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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?

#671
I see a bunch of vague and non answers to this question. Here is mine: Git rebase + squash

Actually sitting down and understanding what it's about, trying it out and implementing it should be possible within 1 hour without ever having touched it before, and has at least a huge potential to make you way better at Git.

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

#672

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.

It's all relative. If $X is a lot to you, k^t * $X is even more. In forty years, the stock market has gone up about 30x, while the dollar has gone up a little below 4x, meaning money invested would have really grown almost 8x. So if you can afford to squirrel away 1/8 of a meaningful amount, then it'll have been be useful to you when you're older.

Sadly, a huge number of people can't do that. If your bills are $1000/mo and you earn $1001/mo, and invest the entire excess, when you're old, you'll have below $8 for every month invested today, which is meaningless compared to your expenses. 8 times nothing is nothing. But if your bills are $1000/mo and you earn $1130/mo and invest the entire excess, it'll entirely pay for a corresponding lifestyle when you're old.

Perhaps a more important lesson in that case is compound interest on debt. If you borrow money from a credit card company, you can get exponentially fucked. The lesson may not be that compound interest gets you wealthy, but it's certainly that compound interest can make you worse than broke.

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

#673

Earlier quoted context omitted.

As much as I dislike seemingly knee-jerk contrary statements against “known-good” knowledge, I feel that there is an important point here: aggressively attempting to compound interest is a poor use of time when you only have, say, hundreds of dollars. Better to focus on compound interest “in the background” while optimizing for growing capital or income-generating skills.

So, essentially: compound interest is something wealthy people are good at because it's useful when you are wealthy. Not because learning about compund interest will make you rich?

For the vast majority of people, the best thing they can spend time on to improve their financial situation is increasing their hourly wage or salary.

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

#674
In five or ten minutes you can learn make.py[1], a dead-simple alternative to Makefiles.

Those are both examples of "automated build tools". If you do data science, and have even a moderately complex graph of dependencies (i.e. some files need to be built before others can be built), such a tool is an absolute lifesaver.

[1] https://github.com/zwegner/make.py

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

#675
post #648
post #645

Maybe the basics of "How to Win Friends and Influence People." https://fs.blog/2012/07/how-to-win-friends-and-influence-peo... Then applying it will take longer though.

Real friends don't let friends read "HtWFaIP".

The key for reading HtWFaIP is to understand and practice sincerity.

"The secret of success is sincerity. Once you can fake that you've got it made." - Hippolyte Jean Giraudoux

Don't be that person. Cultivating genuine sincerity is part of your own self-respect. If you genuinely do that, you can safely read HtWFaIP.

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

#676
post #207

Earlier quoted context omitted.

Haven't seen the videos, but I was taught the "proper" way of wrapping audio cables when I took an audio recording class, and now I obsessively wrap all my cables that way. So much more useful!

> So much more useful! The only cables I really deal with are network cables and extension cords and I've always just done the wrap-around-your-palm-and-elbow-method. What am I missing out on?

> What am I missing out on?

The person who showed me how to do it said, "If you've done it right, you should be able to do this"; and with the coiled microphone cable in one hand, she held one end with her thumb and tossed the rest of the coil outwards. It uncoiled in the air and landed in a straight line, no tangles or knots.

Basically, if you do this: 1) The cables are less likely to be damaged, 2) the cables are a lot more 'weildy': they don't get tangled in interminable knots, and expand very easily. The cables themselves remain looking nice as well, and don't get ugly kinks in them.

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

#677
post #104

Do nothing. Seriously. Allow yourself to become bored and you'll find your brain has suddenly got time to work on all the problems you mentally shelved. There's a good reason why a good number of ideas happen in the shower.

Most weeks, I take an hour+ long walk around a lake near my neighborhood, no electronics. I find the time helps surface vital things that don't come up day to day.

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

#678

Earlier quoted context omitted.

There is this nice book called "The Slight Edge" which builds on this whole idea in general and how it is applicable at every facet of life. It is really an insightful book and atleast you will slightly change about how you think about stuffs.

I'm reading *Atomic Habits right now and the author talks about how building small improvements on top of each other can eventually deliver great gains. The trick seems to be identifying just what it is to work on.

Added to my reading list! Thanks for the suggestion.

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

#679
post #488

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…

My partner really picked up cooking in the last couple of years. We hardly ever go out anymore. Every time we get a craving she says "Yeah, we could go to a crowded restaurant... or I could make it better". Without fail, she does. I think the secret is, one of the most important aspects of good food is time to table. When you make it at home, you can eat as soon as it's done or rested. Along with the anticipation fac…

I’m totally buying the pants argument!
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