标签：#r

Two nested loops can do the same work, have the same O(n²) complexity, and still run around 15× apart. A visual explainer on why: the RAM model, the memory wall, cache lines, locality, L1/L2/L3, prefetching, data layout and false sharing. It also covers how the timing difference between a cache hit and miss became the side channel behind Spectre and Meltdown. submitted by /u/Ok_Marionberry8922 [link] [留言]

It's my N-th attempt at learning to meditate. At some point, I realized that even lifting weights, sleeping and eating well aren't enough if you can't tame your thoughts and control your stress level. This time, I have started with the introductory course on the Waking Up mobile app. It's frustratingly difficult to even get through the first lesson in which you are supposed to focus on your breath and minimize the wandering of your mind. I think it would be very motivating to hear the stories of

After a dismal two years of weakening demand, falling sales, and damage to its brand by Elon Musk's political activities, Tesla's road to recovery continues apace. On the heels of an impressive delivery report, the company released its earnings for the second quarter of 2026 - giving us the latest glimpse at the EV company […]

San Francisco co-working dataset visualized, as a game! Discussion | Link

A game development tutor now on iOS Discussion | Link

SoundCloud has acquired decentralized music platform Nina Protocol, months after the startup announced it would shut down. The deal brings Nina’s artists, editorial archive, and music discovery tools to SoundCloud as the company continues expanding its platform for independent musicians.