Some Things Just Take Time: Armin Ronacher on Speed, Friction, and AI-Generated Software

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2026-03-22T11:02:06.000Z·2 min read
Flask creator Armin Ronacher argues that the tech industry's obsession with speed is actively harmful, coining the phrase 'vibe slop at inference speeds' to describe AI-accelerated but low-quality software development.

Some Things Just Take Time: Armin Ronacher on Speed, Friction, and AI-Generated Software

Armin Ronacher — the creator of Flask, Click, and Sentry — has published a reflective essay titled "Some Things Just Take Time" that has struck a nerve on Hacker News, reaching 712 points. In it, he argues that the tech industry's obsession with speed is actively harmful to software quality, and that some things simply cannot be rushed.

The Tree Metaphor

Ronacher opens with a simple observation: trees take decades to grow. A 50-year-old oak provides shade, character, and property value that no amount of money or effort can replicate on a new plot. The same principle applies to software, companies, and open source projects — genuine depth and reliability require sustained effort over years.

Friction Is Good

The essay challenges the prevailing "move fast" mentality:

"Vibe Slop at Inference Speeds"

Perhaps the essay's most memorable phrase: Ronacher describes the current state of AI-assisted software development as "vibe slop at inference speeds." The concern isn't that AI can't write code — it can. The concern is that accelerating the creation of software that people and businesses depend on, without the friction of careful review and testing, produces code with a short shelf life.

Tenacity Over Speed

The core argument is that the defining element of successful companies and open source projects isn't speed — it's tenacity. The ability of leadership and maintainers to stick with a problem for years, build relationships, and work through challenges that are fundamentally defined by human lifetimes.

Why It Matters

This essay arrives at a critical inflection point. As AI tools make it trivially easy to generate code, the question of what makes software good becomes more important than ever. Ronacher's answer: time, patience, and the willingness to let things be difficult.

Source: Armin Ronacher's Blog | HN Discussion

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