The IEEE Spectrum article argues that the current trajectory of 6G development, focused on extremely high frequencies and bandwidth, might be misguided. While these frequencies offer theoretical speed improvements, they suffer from significant limitations like extremely short range and susceptibility to atmospheric interference. The article proposes a shift in focus towards utilizing the existing, and largely underutilized, mid-band spectrum for 6G. This approach, combined with advanced signal processing and network management techniques, could deliver substantial performance gains without the drawbacks of extremely high frequencies, offering a more practical and cost-effective path to a truly impactful next-generation wireless network.
Neuralink celebrates one year since implanting their first telepathy device, the N1 Link, in a human. The blog post highlights the ongoing PRIME Study, which is evaluating the safety and efficacy of the N1 Link and the R1 surgical robot. The primary goal is to enable people with paralysis to control external devices with their thoughts. Early progress has allowed a participant to control a computer cursor, demonstrating the potential of this technology to restore independence and improve quality of life for those with severe disabilities. The post emphasizes Neuralink's commitment to patient safety and expresses optimism about the future of brain-computer interfaces.
Hacker News users expressed significant skepticism regarding Neuralink's "telepathy" claims. Many commenters argued that the technology demonstrated is simply a brain-computer interface (BCI) controlling a cursor, not actual telepathy. They pointed out that similar technology has existed for decades, albeit less refined. Some questioned the scientific rigor and long-term viability of the implant, citing potential issues with biocompatibility and the necessity of frequent upgrades. Others discussed the ethical implications, particularly concerning privacy and potential misuse of the technology. A few commenters acknowledged the potential benefits for disabled individuals, while remaining cautious about overhyped marketing and the long road to practical application.
Summary of Comments ( 183 )
https://news.ycombinator.com/item?id=43027266
HN commenters largely agree that focusing on 6G is premature and driven by hype, especially given 5G's under-delivered promises and niche applications. Several express skepticism about the need for the speeds 6G promises, arguing current infrastructure improvements and better utilization of existing technologies are more pressing. Some suggest focusing on improving coverage, affordability, and power efficiency instead of chasing higher theoretical speeds. There's also concern about the research itself, with comments highlighting the impracticality of some proposed technologies and the lack of clear use cases beyond vague "future applications." A few commenters point out the cyclical nature of these G cycles, driven by marketing and telco interests rather than genuine user needs.
The Hacker News post "It's Time to Rethink 6G" (linking to an IEEE Spectrum article about 5G bandwidth) has generated a moderate discussion with several insightful comments. Many commenters focus on the perceived gap between the promised capabilities of 5G and its actual real-world performance, expressing skepticism about the rush towards 6G.
A recurring theme is the idea that the current focus on higher frequencies for 6G might be misguided. One commenter argues that lower frequencies, despite offering lower theoretical speeds, provide better coverage and penetration, which are more valuable for many applications. They suggest that focusing solely on peak speeds is a marketing ploy and that real-world improvements in average speeds and coverage would be more beneficial. This sentiment is echoed by others who point out the limited availability and high infrastructure costs associated with mmWave 5G, which has struggled to deliver on its initial promises.
Another commenter criticizes the hype cycle surrounding each new generation of wireless technology, arguing that the industry tends to overpromise and underdeliver. They suggest that instead of focusing on theoretical speeds, the emphasis should be on improving the efficiency and affordability of existing networks. This includes optimizing resource allocation, reducing latency, and improving spectral efficiency.
Several comments delve into the technical aspects of 6G, discussing potential technologies like Terahertz communication and the challenges associated with implementing them. One commenter points out the significant attenuation and atmospheric absorption issues with Terahertz frequencies, making them unsuitable for long-range communication. They suggest that research efforts should focus on addressing these technical hurdles before promoting 6G as a viable solution.
Some users express concern about the potential health effects of higher frequency radiation, although these comments are not as prevalent. Finally, a few commenters offer more optimistic perspectives, suggesting that 6G could enable new applications in areas like augmented reality, virtual reality, and the Internet of Things. However, they acknowledge that significant research and development are still required to realize the full potential of 6G.
Overall, the comments on Hacker News reflect a healthy dose of skepticism towards the hype surrounding 6G, with many users urging a more pragmatic approach focused on improving existing networks and addressing the shortcomings of 5G. There's a clear desire for a shift away from the relentless pursuit of higher frequencies and peak speeds towards a more balanced approach that prioritizes real-world performance, affordability, and practical applications.