Live data from Hacker News

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

news.ycombinator.com

251–260 of 1001 posts

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

#251
post #159

If you have to work with the linux or mac command line at all as part of your job, 'sed' and 'awk' are 2 commands that will boost your productivity hugely.

Very useful, but one hour might not be enough to get good enough to reach for these commands when you need them, and these skills require some maintenance.

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

#253

Pomodoro technique - Takes a few minutes to learn and setup an app. It has helped me be super productive with tasks requiring concentration.

And if you can't abide by a timer, use this to completely lock your screen to force the downtime: https://github.com/felixpalmer/Cherrola

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

#254

CPR/Choking/First Aid course is probably close to an hour. How to change your own oil - probably lots of other money-saving home and auto DIY things... Speed reading and memory tricks can be a multiplier on learning other skills. How to use automation tools like Zapier and IFTTT - again, a force multiplier. You might be interested in this book https://www.amazon.com/First-20-Hours-Learn-Anything/dp/1591... - the auth…

I would add a few things I learned to improve your memory: 1. Care about the subject 2. Focus on memorizing it: This may seem dumb, but how many times have you forgot where you placed your keys? If all you do is momentarily state to yourself "I set my keys here" when you put them down, it's almost hard to forget. 3. Don't eat white sugar or white flour processed, or other foods that may cause you to loose concentrati…

Also another trick (without going full formaliser spaced repetition): reread the same thing the next day, and then a week after. Boring but very effective for long term retention.

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

#255
I learned docker-compose in roughly one hour. It changed my mind on Docker as adding extra complexity to: docker-ize all the things and update with docker-compose up -d!

I guess this does depend on some prior experience with docker and perhaps on me avoiding docker-compse because I thought it was docker for pros. Instead, it's docker for dummies.

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

#256

How, and why, to invest in a simple portfolio of index funds. Split between equity and fixed income based on your risk tolerance, and diversify equities globally. This will give you a low-cost, set-and-forget investment portfolio that you can add to over time without ever having to worry about what you should buy or what the market might do. Just add to it regularly over time, and end up with solid retirement savings…

Jack Bogle did not advocate for adding international equities to a portfolio as a means of diversification. [1] [1] https://www.morningstar.com/articles/885739/why-jack-bogle-d...

The reasons in the link are fairly ridiculous

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

#257
post #235
post #85

Earlier quoted context omitted.

I always try to learn how to say, "I'm sorry, I don't speak X" in language X. When I was in Japan I got an unbelievable amount of leverage out of being able to say, "Sumi masen, Nihon-go hanasei masen" which, of course, means "I don't speak Japanese" in Japanese. The local's faces would light up and often they would respond in Japanese despite the fact that I had just told them that I don't speak Japanese.

FYI, "hanaseimasen" is not a correct negative of "hanasu", it should be "hanashimasen". Also an easy way to say you don't understand anything is "wakaranai".

they weren't wrong.

hanasemasen = can't speak

hanashimasen = don't speak

It's arguably more proper to say "nihongo ga hanasemasen" (I can't speak Japanese) than "nihongo wo hanashimasen" (I don't speak Japanese). The first is a statement of my personal abilities. The second could easily be a statement of my attitude. "nihongo ga hanasemasu kedo nihongo o hanshimasen" (I can speak Japanese but I don't speak Japanese)

For whatever reason I've never heard wakaremasen (can't understand) but only don't understand (wakarimasen).

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

#259

Credibility of sources. I learned this in 40 minutes of a medieval history class. It is simply the constant habit of asking: Who is speaking? Why are they speaking? What have they to gain or lose from speaking? What have I to gain or lose from believing/disbelieving what is said? I actually by instinct tend to believe people are mostly speaking in good faith so this is a great corrective for me. Also I have a habit o…

And "To whom are they speaking"? What you are giving a succinct overview of is Aristotle's _Ars Rhetorica_ Cracking read, BTW.

Is there a good translation available somewhere?

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

#260

How to properly wrap cables. A/V and cable techs are super anal about this and it takes just a few minutes to learn, it will change your life. Cables should never be coiled in the same direction. It creates kinks when unwound and make it extremely likely for knots to form (ever leave your headphones in your pocket?). If a cable isn't being installed permanently it should be "wrapped" using a technique called "over-un…

I’ve been taught this technique as the “roadie wrap”.
Post reply on HN