--- title: Learning is Cool | daily.dev description: A developer shares their experience learning SIMD (Single Instruction Multiple Data) after seeing a Hacker News debate about whether everyone should know it.... canonical: https://daily.dev/posts/learning-is-cool-awiut2chu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Learning is Cool | daily.dev og:description: A developer shares their experience learning SIMD (Single Instruction Multiple Data) after seeing a Hacker News debate about whether everyone should know it.... og:url: https://daily.dev/posts/learning-is-cool-awiut2chu og:image: https://api.daily.dev/og/posts/aWiUt2Chu.png og:image:alt: Learning is Cool og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Learning is Cool **[ThePrimeTime](https://daily.dev/sources/primeagen)** · 11 min read · 10 upvotes · 2 comments ## Summary A developer shares their experience learning SIMD (Single Instruction Multiple Data) after seeing a Hacker News debate about whether everyone should know it. They walk through building a practical example — finding newlines in log files — comparing a naive byte-by-byte approach (~1.54s) against a SIMD version processing 16 bytes at a time, achieving a massive speedup. The post argues that learning SIMD is approachable (took about an hour), and that having knowledge you rarely use is still valuable. It also notes Go is adding experimental SIMD support. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@epicuser** · 0 upvotes > Learning is cool when u can apply it, but hte problem is that we learn a lot of stuff today just to understand them not to apply them so the learning became a big problem for us :\ ## Similar posts on daily.dev - [Everyone Should Know SIMD](https://daily.dev/posts/everyone-should-know-simd-jggqusevq) · Mitchell Hashimoto · 3 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#golang](https://daily.dev/tags/golang) [View this post on daily.dev](https://daily.dev/posts/learning-is-cool-awiut2chu) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Learning is Cool","url":"https://daily.dev/posts/learning-is-cool-awiut2chu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/learning-is-cool-awiut2chu"},"datePublished":"2026-08-03T13:08:28.397Z","dateModified":"2026-08-03T13:08:49.339Z","description":"A developer shares their experience learning SIMD (Single Instruction Multiple Data) after seeing a Hacker News debate about whether everyone should know it....","image":"https://i.ytimg.com/vi/4nJ2tEPD4-k/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/4nJ2tEPD4-k/sddefault.jpg","isAccessibleForFree":true,"articleSection":"ThePrimeTime","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"ThePrimeTime","logo":"https://media.daily.dev/image/upload/s--J5-GjDeo--/f_auto/v1704628081/logos/primeagen.jpg","url":"https://daily.dev/sources/primeagen"},"commentCount":2,"discussionUrl":"https://daily.dev/posts/learning-is-cool-awiut2chu","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":10},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":2}],"keywords":"performance,golang","timeRequired":"PT11M","video":{"@type":"VideoObject","name":"Learning is Cool","description":"A developer shares their experience learning SIMD (Single Instruction Multiple Data) after seeing a Hacker News debate about whether everyone should know it....","thumbnailUrl":"https://i.ytimg.com/vi/4nJ2tEPD4-k/sddefault.jpg","uploadDate":"2026-08-03T13:08:28.397Z","duration":"PT11M","url":"https://api.daily.dev/r/aWiUt2Chu","embedUrl":"https://www.youtube.com/embed/4nJ2tEPD4-k"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"ThePrimeTime","item":"https://daily.dev/sources/primeagen"},{"@type":"ListItem","position":3,"name":"Learning is Cool"}]} {"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/learning-is-cool-awiut2chu","comment":[{"@type":"Comment","text":"Learning is cool when u can apply it, but hte problem is that we learn a lot of stuff today just to understand them not to apply them so the learning became a big problem for us :\\","datePublished":"2026-08-09T17:48:21.641Z","url":"https://daily.dev/posts/aWiUt2Chu#c-6Yrkc03zH","author":{"@type":"Person","name":"EpicUser","url":"https://daily.dev/epicuser","image":"https://media.daily.dev/image/upload/s--O0TOmw4y--/f_auto/v1715772965/public/noProfile"}}]} ```