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Cake day: June 16th, 2023

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  • My phone is better at navigation etc anyways.

    You could similarly argue that phone makers should concentrate on making and taking calls. Turns out, that’s not what consumers care about once a certain bar is cleared (a pretty low bar; call quality is notably bad on many modern cellphones). They care more about other stuff like… being good at navigation.

    This has been put to the market test in China. For EV purchases, most consumers turn out not to care about the “car” aspects beyond a certain point. If the car drives okay and has acceptable safety, what matters is the Internet-based bells and whistles.


  • “The wealthy and corporations” have choices of how to invest their money. If housing supply is sufficiently elastic to meet demand, they’ll find somewhere else other than housing to put their money. Ain’t nobody trying to corner the Chinese real estate market in 2024, for instance (*).

    There are a few places where land shortages genuinely constrain housing supply, like Singapore and Hong Kong. But the US has tons of land; things are simply not well optimized. That, plus high interest rates due to fiscal/monetary mismanagement.

    (*) Not saying the Chinese real estate market is worth emulating.


  • This is an unserious proposal. Germany spends about 1.5 percent of its GDP(*) on defence, much of it wasted, and increasing it to even 2 percent has involved painful and extended political wrangling. If the country collectively cannot find the will to tweak its budget to fund a modest increase in defence spending, it is not going to countenance universal conscription.

    (*) GDP, not budget; error pointed out by Enkrod



  • Irrelevant. Because of India’s population, the only way for it not to eventually surpass Japan in total GDP is for India to remain perpetually mired in backwardness. Since the 1990s, India has undergone successive rounds of economic liberalization, thereby achieving catch-up growth. All that stuff with Japanese demographics, bad management, etc. are secondary factors. Even if all the factors for Japan had been more favorable, it would only have postponed the day of overtake by a few years.




  • I’m pretty skeptical about how much fundamental change is possible on this issue. So long as we give consumers a choice, the overwhelming evidence is that most people dgaf about their data, and are willing to trade it away.

    This is a totally free exchange. Even when you plant the choice in front of users as an obnoxious and intrusive accept-cookies prompt, they’ll happily click Accept All even for sketchy websites (let alone something like Gmail). So you end up wasting everyone’s time for little benefit.

    A common response to this is to mull heavy-handed centralized government controls, like how China regulates its internet giants. But this would be a decisive move away from the entire idea of a decentralized internet. People pushing such legislation often retort that it’s possible to pick off the internet giants while leaving smaller operators alone, but this seems like a forlorn hope. Google and Meta already signalled that they are not concerned about EU data laws, because they have so much internal data, and the regulations could even entrench their dominance by preventing other players from catching up.







  • cyd@lemmy.worldtoTechnology@lemmy.worldThe Tiny Ultrabright Laser that Can Melt Steel
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    6 months ago

    This is a really neat technology that Noda (the author of the article) has been plugging away at for decades. The main problem, from my understanding, is that people haven’t been able to find applications.

    We already have conventional laser diodes that work extremely well, they’re not that bright but bright enough to make laser pointers, disc read/write heads, etc., which are applications where miniaturization is important.

    On the other hand, in industrial applications like cutting steel, we have fiber lasers. Those are about the size of a briefcase, compared to the photonic crystal lasers in this article which about a centimeter. But they can reach incredible brightness, about 1000x the output power of the photonic crystal lasers (and about 1,000,000 times that of ordinary laser diodes). And in industrial applications you don’t really need the laser to be miniaturized (especially since the power source itself will be a chonky piece of equipment).

    So somehow, right now this neat tech is falling into the cracks. One day, I’m sure someone will find the perfect application for it, though.

    Edit: the potential application that people are most hopeful about is lidar; if, in the future, lidar gets integrated into consumer electronic devices like cellphones, then photonic crystal lasers will probably prove their usefulness.