--- title: Locknote: Reasons to be Cheerful: 0, 1, 2 - Emmz Rendle... description: A closing keynote from NDC Copenhagen 2026 by Emmz Rendle, framed as a list of reasons to be cheerful despite a turbulent world. Topics span AI's positive... canonical: https://daily.dev/posts/locknote-reasons-to-be-cheerful-0-1-2---emmz-rendle---ndc-copenhagen-2026-bwu4vdmzi twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Locknote: Reasons to be Cheerful: 0, 1, 2 - Emmz Rendle - NDC Copenhagen 2026 | daily.dev og:description: A closing keynote from NDC Copenhagen 2026 by Emmz Rendle, framed as a list of reasons to be cheerful despite a turbulent world. Topics span AI's positive... og:url: https://daily.dev/posts/locknote-reasons-to-be-cheerful-0-1-2---emmz-rendle---ndc-copenhagen-2026-bwu4vdmzi og:image: https://api.daily.dev/og/posts/BWu4VdmZi.png og:image:alt: Locknote: Reasons to be Cheerful: 0, 1, 2 - Emmz Rendle - NDC Copenhagen 2026 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. # Locknote: Reasons to be Cheerful: 0, 1, 2 - Emmz Rendle - NDC Copenhagen 2026 **[NDC Conferences](https://daily.dev/sources/ndc)** · 57 min read · 0 upvotes · 0 comments ## Summary A closing keynote from NDC Copenhagen 2026 by Emmz Rendle, framed as a list of reasons to be cheerful despite a turbulent world. Topics span AI's positive real-world applications (medical diagnostics, genomics, AlphaFold, CRISPR), the dangers of vibe coding (security breaches, exposed databases, deleted production data), progress in robotics, climate tech (solar canals, nuclear fusion energy-positive reactions), and quantum computing including post-quantum cryptography standards. The talk also covers running capable open-source LLMs locally on consumer hardware (Gemma 4, Qwen 3.6 on M3 Max with 36GB RAM), and closes with personal reflections on mental health, community, and finding happiness in small things. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What are the security risks of vibe coding apps built with AI tools like Cursor or Replit? A scan of 380,000 publicly accessible apps built with vibe coding tools found that 5,000 of them were leaking all user data, with no authentication, no SQL injection protection, and in many cases a Postgres database exposed directly to the internet with default credentials. One high-profile incident involved Replit AI deleting a user's production database instead of migrating the schema. _Developers shipping AI-assisted apps track vibe coding security incidents and best practices on daily.dev._ ### Can I run Gemma 4 or Qwen 3.6 locally on a MacBook with 36GB RAM? Yes, both Gemma 4 and Qwen 3.6 (35 billion parameters) run comfortably on an Apple M3 Max with 36GB of unified RAM using 4-bit quantization. They perform well enough for coding agent tasks, though a model like Claude is recommended for code review afterward. A newer M5 MacBook Pro Max can be specced with 128GB RAM for around $5,000. _Developers choosing between local and cloud LLMs for coding workflows find comparisons and real-world reports on daily.dev._ ### What is the status of energy-positive nuclear fusion and how much energy gain has been achieved? The National Ignition Facility at Lawrence Livermore National Laboratory has achieved energy-positive fusion reactions eight times, putting in 2 megajoules of laser energy and getting over 8 megajoules out — a four-times target energy gain. Practical grid-scale power from fusion remains a long way off, but the physics milestone of net energy gain has been demonstrated repeatedly. _Engineers following clean energy breakthroughs relevant to data center sustainability find coverage on daily.dev._ ## Similar posts on daily.dev - [SELF 2026: My Golden Ticket To Vibeville](https://daily.dev/posts/self-2026-my-golden-ticket-to-vibeville-opu9f695a) · Jay Little · 0 upvotes · 0 comments - [The last six months in LLMs in five minutes](https://daily.dev/posts/the-last-six-months-in-llms-in-five-minutes-aeq8lmypy) · Simon Willison · 53 upvotes · 2 comments --- Tags: [#ai](https://daily.dev/tags/ai), [#security](https://daily.dev/tags/security), [#quantum-computing](https://daily.dev/tags/quantum-computing), [#vibe-coding](https://daily.dev/tags/vibe-coding), [#local-ai](https://daily.dev/tags/local-ai) [View this post on daily.dev](https://daily.dev/posts/locknote-reasons-to-be-cheerful-0-1-2---emmz-rendle---ndc-copenhagen-2026-bwu4vdmzi) ```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":"Locknote: Reasons to be Cheerful: 0, 1, 2 - Emmz Rendle - NDC Copenhagen 2026","url":"https://daily.dev/posts/locknote-reasons-to-be-cheerful-0-1-2---emmz-rendle---ndc-copenhagen-2026-bwu4vdmzi","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/locknote-reasons-to-be-cheerful-0-1-2---emmz-rendle---ndc-copenhagen-2026-bwu4vdmzi"},"datePublished":"2026-08-12T07:02:14.578Z","dateModified":"2026-08-12T07:02:46.637Z","description":"A closing keynote from NDC Copenhagen 2026 by Emmz Rendle, framed as a list of reasons to be cheerful despite a turbulent world. 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