progressiveweb

I agree. The author has no understanding of the history of the automotive industry. We've seen this hype phase before returning to reality.

The truth is that gasoline is still king because it is the fastest way to recharge your car. Manufacturing process and incremental improvements have made combustion engine far more efficient and cleaner. It's likely that this trend will not weaken, instead get even more boost more than ever because it offers a cheap alternative to electric cars.

Coupled with a low oil price, we aren't going to see combustion cars disappear like HN folks would have you believe, instead we will see consumers voting with their money.

At some point we will see combustion engine that approach somewhere a bit shorter than the 80~85% theoretical limit of combustion engine efficiency, but that is still an insane improvement to what we already have.

I don't disagree that electric cars will get more popular, but a cheap oil price and highly efficient combustion engine that is coming is not going to lead to an apocalyptic future where sportscar owners are banished to remote islands, free to cause all the pollution they want.

"but we have over 60% efficiency from our combustion engine!" they yell to no avail. The silence of electric cars whirring in the cities snuffs out Doug Demuro's fans.

when you get frustrated, it means you need to slow it down, simplify the immediate task needed to build up the muscle memory to be able to sync each note on the sheet.

In the beginning, especially when starting a very difficult piece, practice only one bar at a time with the right hand and then the left hand separately.

Once you got the bar down perfectly, move on to the next until you got the whole line. Finally practice both hands to sync it up.

As you do this repeatedly, you will discover it gets easier. Because your brain is like a muscle. When you exercise it, it just gets better at the task.

Once you've digested something difficult and challenging, guess what, you've made leaps and bounds vs practicing simple pieces that won't lead to new breakthroughs.

I find this principle to apply to a lot of things, like working out. It's easy to jog, but jogging uphill is what builds those fast twitch muscles. On that note, please don't try to speed through the practice sessions. Once bad habits are formed, your brain literally is hard wired to make those mistakes.

Hell, even pianists will struggle with a new challenging piece and will not be able to rip through it on the first try unless they are like autistic savants.

If you really get to a point where you can't continue, then allow yourself to listen to someone else playing it. In fact this is the best way to keep dangling that carrot in front of you while you try to master a piece.

Easier said than done tho.

South Korea transformed from the poorest nation to the richest not because of the trope that education was largely responsible and I don't discount that but it's far fetched to suggest that as a single cause.

After all, without Park Chung Hee's military dictatorship, without essentially enslaving 1/2 of the population as a glorified slave with the threat of violence, without handing over the destiny of millions of Koreans to the hands of the dozen family run corporate dynasties (aka chaebols), without the massacre and denial of reparations and the censure, capture, torture and killing of dissidents,

South Korea would not be as successful as it is.

Life in South Korea during the military dictatorship which lasted 2.5 generations, was just as hard if not oppressive like the North. If you read about the Gwangju Massacre (Korea's Tianmen Square), it's pretty clear that South Korea was virtually no different than North Korea in terms of political freedom.

This is the miracle of the Asian tigers - when you don't have natural commodity, the people become that commodity, expendable, something to be taken advantage of by people with capital.

Here's an example of the type of questions that kids in the "Free Korea" faces: https://external-preview.redd.it/xL79rBC8VK4gI5lej7gFbU1priH...

This is only the tip of the iceberg. It appears that in order to force everybody on a normal distribution map, they've gone well past the original purpose of the government exams, which was originally a neo-Confucian artifact to promote egalitarianism-the idea that even peasants who pass the government exams are able to improve their social standing after a long period of caste society based on lineage.

This means students aren't tested even on rote memorization or any of the necessary skills in the real world. Instead, they've become victim to the billion dollar industry of extra-cirricular cram schools. Public schools have become completely dependent on a widely unregulated cram schools because it's become impossible to come out on top when everybody is getting specialized help. You can't fault these parents either, these exams are insane and it makes sense that there is demand for extra tutoring.

The biggest tragedy of this is that it's no longer egalitarian like in it's tradition, it's about who has the money and can pay for their child's education. Low middle class Korean families can't support the cost of raising a child in this hyper education focused culture with very little prouductivity other than elevating the truly gifted exam takers running the country with no experience other than from books.

A big reason why in South Korea, you can commit horrible crimes and almost get a slap on the wrist because of incompetent, unexperienced judges and prosecutors who have mastered the art of climbing the Korean ladder, a giant bureaucracy that permeates through every part of Korean culture. Neo-confucianism is facing significant stress and young Koreans are undergoing social change.

Your argument that because bees display a similar behavior, that it's grounds to invalidate the credibility the people conducting this study of Orangutan's cognitive abilities is based on conjecture. You are conflating a reference to another intelligent species as evidence to support a counter view to a commonly agreed upon advanced cognitive capabilities of the Orangutan.

A previous study shows Orangutans do indeed have excellent memories and are able to communicate with humans using commonly agreed upon visual symbols. Long past the 120 seconds.

https://www.youtube.com/watch?v=kwslHICR7K4

side-note: I feel that often, parent's comment gets a lot of likes, not for the validity of the argument but rather being contrarian for the sake of it. It's troubling because often it appears that they are providing commentary on an area totally unfamiliar and outside the usual field of expertise like engineering. Instead what I see is erroneously inferring logic based on the specific pieces mentioned without taking account in to the larger picture. These scientific studies are conducted not one off but to support previous widely held beliefs by the scientific community with vastly more focused experience on their topic of research, just wish that HN folks would give them a more credit and practice modesty. Some people on HN don't even bother reading journals or studies being posted here, instead they just blindly hop on the bandwagon with serious holes in the argument.

^ this. Use a pencil to write the number of seconds. For advanced pieces you need to actually sit down and do a division and it's tricky to practice with both hands (like Fantasie Impromptu).

it's so tempting once you get the notes right to just let her rip at full speed but this was a bad habit and hard to break.

Now I try to play as slow as possible as often as possible. Only when you have it down perfect can you then start adding dynamics, expressiveness and your own take.

Alright here's "hacks" and unfortunately there's no software or books to help you here, you simply cannot substitute the sheer number of hours needed to get to a point where you can comfortably sight read almost any music. I used to skip several Royal Conservatory of Music grades using these "hacks". But you are gonna be disappointed because it requires serious commitment, used to practice like 12 hours a day when I was a kid and eventually slowed to a point where I no longer actively play but able to pick it up and play the Rachmaninoff's Moment Musicaux from memory, this is the highest point I was able to reach, something that child prodigies master before they turn 10.... ¯\_(ツ)_/¯:

1) You need to get into the habit of not looking down at the keyboard. This was the very first lesson and took years. Eyes on the sheet music as much as possible. You should not have to move your fingers a lot when starting out.

2) This one will be a bit controversial but dont worry too much about form yet, just focus on hitting the right notes first. You do need to address it to avoid physical limitations when at the advanced level, I just didn't because I'm a rebel.

3) Practice reading new sheet music until you feel comfortable not looking down at your hand positions other than to check you are in the right octave and placements. You should be able to directly recognize and translate not only bars but entire paraphrases into "guesses". For a lot of people, those "guesses" are wrong but eventually I got to the point where I could sight read Chopin Waltz. This skill also translated well when I took up cello and was able to join a local orchestra within a half a year. Nobody believed me but being born to an immigrant family, I didn't have the luxury of taking things nice and slow. Basically, my mom had only limited budget so I had to somehow make the best out of each lesson and just practice the hell out of it. I did think briefly about a career as a pianist but that fizzled out.

4) Now the true hacky bit, which builds upon the previous skill that requires you to translate the notes to finger positioning without thinking. Challenge yourself to sheet music you can barely play both hands. I recommend Bach because it is missing the expressive dynamics and focused on rapid eye hand dexterity. Inventions a Deux voix or Trois voix play two and three separate melodic sequences.

4) The biggest break through and the aha! moment in rapidly mastering an instrument was to keep sight reading progressively more challenging pieces. By the time I finished the Bach Inventions, I was tired of the mechanical and depressing themes (the dude had to come up with new material or the guillotine) and naturally gravitated to Chopin.

5) Once again I applied the same routine. Finish the Chopin Waltz then the Nocturne and dabbled with Fantasia Improviso where I felt I hit a physical limit due to the horrible hand posturing habit that I developed due to focusing soley on sheet music reading.

6) At this point I could take on pretty much any challenge and boy did it take a long ass time. Just being able to play Moment Musicaux No.3 at 3/4 of Lugansky's speed (I consider to be the best interpretation....not because he's russian btw...well have a listen below) took years and years. I still can't reach his level. This is where the pros and amateur start to distance.

https://www.youtube.com/watch?v=WhLDse5R8dQ

TLDR: Theres just no hack to mastering the piano. It's a lot harder than other instruments imho in some ways because you don't just play the melody like string instruments although it's easier in a sense that all notes are tuned and requires no other effort than striking a key. Not so with cello, without perfect pitch, it's tough to know if I'm in tune or if my "key" is right. When you hear amateur orchestras and professional you can tell the difference immediately because pros are so well synced along with high quality instruments.

My question is, why do we need a React/Redux for PWAs all the time? It is slow on cellular data, freezes phones without the latest Chrome, all in all feels laggy compared to a native app.

The thing is you can easily add "Progressiveness" to your website with Service workers and using open source libraries to add instant on-page navigation without repaint.

The only place I find an SPA is appropriate is anywhere else but e-commerce websites, which is one of the main target of Google's PWA initiative, to build a collective resistance to Amazon, which has one of the highest converting pages.

Your conversion rates will naturally go up when people are able to checkout quickly with minimal cognitive load, this does not mean that a React app is appropriate or feasible, especially when e-commerce businesses that rely on older phones, when smartphones are approaching 1000 USD