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es7

234 karma · joined February 19, 2019

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es7··on Google Play service fee reduced to 15% for the first $1M/year
This is awesome news! I was just lamenting that my Play Store "earnings" are so much lower than my "revenue". This will help me as an indie developer make my app offerings a meaningfully larger part of my livelihood.
es7··on Physicists have filmed the oscillation of a time crystal
It sounds like these room-temperature time crystals must be driven by continually applying external energy via the driving frequency, or did I misread that?

Is it feasible to create my own time crystals? Or acquire one?

I would love to add a time crystal to my existing space crystal collection, even if it requires some sort of support to maintain the driving frequency.

I haven't read the paper yet, but it sounds like I could apply a particular frequency to a strip of nickel-iron alloy and practically achieve such an effect?

Do any physicists here know whether that would be feasible?

es7··on Why do printers still suck?
Do they still suck?

I have an HP inkjet printer from ~2010 that works great.

When I want to print from my phone or PC, it seems to just work. I can email a magic address from any other device and it also starts printing.

I order ink a few times a year (we print a lot) and it takes just moments to install. Maybe I'll buy a new laser printer at some point, but I haven't really seen the need.

es7··on I thought I would have accomplished a lot more today and also before I was 35
I know for me there is a definite diet aspect on a daily basis, but I don't remember if that's been the case during any of the weeks where I've felt invincible.

But on a small-scale basis: - Eating a big simple-carb-heavy meal will absolutely ruin my energy focus the rest of the afternoon - However if I've been running a deficit and feel low-energy, a moderate meal of complex carbs (ex: bowl of pasta) will give me enough energy for a few hours of high-energy focused work

I've done keto once or twice at various points when I was more into fitness and there's something nice about the consistent levels of energy.

Have you tried going on keto again? I wonder if there's some magic recipe of cycling on-and-off carbs that can fuel extreme bouts of energy without negative health implications

es7··on I thought I would have accomplished a lot more today and also before I was 35
I spent a few weeks trying to do short (10-20 minute) afternoon naps and they did work great for helping me transition from "day job" focus to "work on personal projects" focus.

In my experience, a good nap could take me from 50% back to 90% but other times I'd wake up feeling queasy, dizzy, grumpy or low-mood. I stopped due to those unexpected side effects, but it seems worth trying again in the future.

Working out consistently may be an important part of the picture. One thing I've learned for certain about myself is that hard workouts will destroy my energy level for the next 1-2 days. So no heavy-weight lifting, 3-hour bouldering sessions or long heavy-breathing runs. Adding in light jogging every evening didn't make much of a difference in either direction.

I may try something like a 2-3 mile run each morning and see if the morning exercise makes a difference.

es7··on I thought I would have accomplished a lot more today and also before I was 35
Thank you for sharing, also.

Until I read your original comment I sort of forgot about that sort of feeling since it's been months of normal daily grind. I wonder if anyone has done serious study into this type of performance.

Some things I've found:

- Waking up way earlier than usual works for about 1 day a week but then I'm more tired the next few days.

- Hydration helps me. A big cup of water is more important than coffee in the morning.

- Caffeine is great. I want to try a detox and re-introduction.

- Socialization is a double edged sword. I find it easier to be hyper-productive when my life has enough interpersonal connection, but being with people is fun and the more I socialize the harder I find it to settle into flow at work

- Eliminating distractions is really important for me (or maybe it's a side effect?) but in my times of hyper-productivity there is no distractions or desires for distractions (ex: video games, social media, etc)

es7··on I thought I would have accomplished a lot more today and also before I was 35
I know what you mean. I might feel that way a few days in a row every couple of months if I'm lucky and rarely ever more than 2 days in a row.

It's a weird, full-body change for me. When I'm in that kind of zone it's like my pre-frontal cortex finally took over control from my lizard brain. Or maybe it's just hormones.

I can do what I choose to do. To focus. To exercise and give 100%. Uncomfortable sensations like cold weather or spicy food feel easy to tolerate.

One other anecdote: occasionally I will have a day full of energy and getting motivated to work hard on things comes easily. Almost like clockwork, I will realize the next day that I'm sick (like a mild cold). I'm leaning to the reverse causation hypothesis (as the body is getting sick, it provides me the energy to work hard to prepare for the later downtime) but I guess it's also possible that whatever energy I'm feeling also leads to immune system weakness?

Anyways, just sharing some thoughts. If I could figure out how to live at that kind of level even one day a week reliably, that would be incredible.

es7··on ‘Success Addicts’ Choose Being Special over Being Happy
Put another way: many people choose to pursue a meaningful life over a happy life.

The English word "happy" covers a wide range of states and I'm not sure the original article has even settled on one definition. They reference terms like 'life satisfaction', 'orginary delights', 'relationships and love', 'hedonic treadmill', etc.

The article seems to be coming from a good place, but I think the deeper message got lost in the noise: "Work for a sense of personal meaning, not outward achievement" (paraphrased).

Happiness and success don't have to be mutually exclusive.

es7··on Ask HN: Is all of FAANG like this?
Try transferring to a new team?

If you were on my team then low productivity would not fly. I see many teams at my FAANG company and all of them have very high expectations. The companies are big enough though that there are occasionally teams that don't hold up.

es7··on Hertz SEC Filing: Up to $500M Common Stock
After years of rentals, I've really only ever had consistently good experiences from National/Enterprise.

I vowed off Hertz 6 years ago. It was around midnight after a long flight, my phone was dead and I had a rental booked from another company.

I was thrilled to see that the Hertz rental counter had a large box of car chargers with a label "$8.99" or something reasonable. So I walk up and ask to please buy one.

The person behind the counter looks at me in disbelief "No, these are for customers only. We're not a convenience store. Go find a Seven Eleven if you need a car charger."

Six years and $10,000+ in business rentals later, I've still never rented Hertz again. Customer service matters.

es7··on Storytelling Tips for Technical Interviews
This is true for life in general, but I'm not sure it works for technical interviews.

I've seen many candidates derail themselves by trying to tell interesting stories without realizing that the interviewer doesn't care. Many companies treat technical interviews as a test and have strict rubrics that are specific to the question.

If I ask a candidate:

"Okay, but how would you replace that XMLHttpRequest with fetch?"

all I want is a straightforward answer that shows you know the answer to the question, or an explanation of why you don't, ex:

"Oh, I would Google that. I exclusively used Axios in my prior job but I could learn fetch in an hour or two"

I know you want to feel heard and I will listen if you want to tell me how you fought your boss and won in a quest to replace all of your homegrown internal tooling with jQuery, but pay attention to your interviewer's body language and responses.

In general, my advice for an interview is never talk more than 1-2 minutes without getting active encouragement from your interviewer to continue on the current thread of conversation.

es7··on The Sun seen through the Earth in “neutrino light” (2007)
The science doesn't add up here. There are dozens of fluffy "this-will-save-the-world" articles without any substance which eventually led me to a single website that claims to represent a team working on that technology. That site seems to be seeking investors.

Without a miraculous scientific breakthrough the math doesn't add up. We don't know of any way to capture neutrons in a way that would provide meaningful power. For those reasons, I'll suggest this is more likely a scam than a sincere or realistic effort.

es7··on Human-Level Intelligence or Animal-Like Abilities? (2018)
That's quite a strawman argument.

'g' is a scalar that tries to measure the relatively large chunk of correlation that tends to show up on aptitude tests.

On average, individuals who do well on one type of intellectual task tend to do well on most other types of intellectual tasks. Maybe someone is good at all forms of pattern recognition but just can't manage 3d-rotation tasks. It happens.

So an IQ test isn't perfect. There isn't one true value that exists in the world that is 'g'. Many tests now break out 'verbal' and 'mathematical' IQ, but I suspect even those have a correlation > 0.5

es7··on Ask HN: How do I create that mental reset effect Monday has on me?
I experience the same thing and I think it's the result of subconscious processing over the weekend.

I find this is only true while I'm working on a job or project I care about, but I generally arrive Monday morning and it's like my fingers just know what to do all on their own. Problems that confounded me on Friday don't even seem like problems anymore. I know what to do and I know how to do it.

I catch myself thinking about work over the weekends often, and I suspect an even bigger part of it is subconscious.

es7··on I Spent $6M on Google Ads Last Year
I run Google Ads for a mobile app I own.

If I try to optimize for download volume, that's all I get - bots after bots. Can rack up thousands of downloads for <10 cents per download without any impact on how many users actually use or rate the app.

I found that getting a good ROI required setting higher price targets and optimizing for in-app actions. That's really hard to do well and not very reliable, but it helped.

es7··on Fuck You Android Framework (2018)
Web development is way way simpler

No one is forcing you to pick up a full Angular 2.0+RxJs stack

es7··on Ask HN: Do other people have days in which they're dumber than usual?
Yes. And some days I feel much sharper than usual.

For me I think it is routine related. I almost never have 'dumb' days during the work week but they're fairly common for me on the weekend.

es7··on Why the “Self-Made” Success Story Is a Myth
I see these types of articles way more than I hear fellow millenials discussing being 'self-made'. It seems almost trendy these days to try to point out all the ways that successful people just got lucky or substantial assistance.

It seems highly related to this trendy idea that all people are fundamentally equal in all forms of capability, except maybe where poor diet hindered education or something.

Individuals vary tremendously, and that's all luck too. Nature+Nurture. Everyone gets something from their parents:

Personality is 40-60% heritable* IQ is 50-80% heritable

So around half of who you are comes from who your parents are. The rest is luck. Even before you're born. My point is that every single person is basically 100% a combination of inheritance and luck. Maybe that inheritance is good genes, good parenting and money or maybe it isn't. Maybe in that context, a 15k loan isn't that big a deal. Maybe it is. Either way, it's counter productive to pick out a single aspect or two of a person and dismantle their success because they had THAT particular advantage.

* https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5068715/ https://en.wikipedia.org/wiki/Heritability_of_IQ

es7··on Why the “Self-Made” Success Story Is a Myth
Maybe he wouldn't have. Maybe someone like him with billions of dollars should start a foundation to try and help prevent poverty, malnutrition, lack-of-education and disease so more people can lead fulfilling lives.
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