Is my vision that bad? No, it's just a bug in Apple's Calculator

Original Article ↗ Hacker News Discussion ↗

Calculator bug and immediate reactions

  • Screenshots show misaligned digits and controls in macOS Calculator’s programmer mode.
  • Some see multiple layout issues: wobbly binary digits, off‑center labels (“Unicode”, 8/10/16 selector), misaligned bit indices, uneven button padding.
  • Restarting Calculator reportedly clears the misalignment, suggesting a transient or stateful bug.
  • One commenter notes the bug appears fixed in the Sequoia beta.

Possible technical causes

  • Several point to font rendering: hinting, antialiasing, and subpixel positioning on low‑DPI or non‑“Retina” displays.
  • Others argue it’s not just fonts: some elements look like they’re positioned at half‑pixels, causing inconsistent aliasing.
  • There’s debate over kerning (horizontal spacing only) vs other font metrics; some incorrect uses of “kerning” are corrected.
  • Some suggest accumulated floating‑point rounding errors in the layout engine; others think that is unlikely.

Hardware, displays, and text clarity

  • Multiple reports that modern macOS looks bad on non‑Retina or awkwardly scaled displays (e.g. 27" QHD): blurry text, poor hinting.
  • Apple removed subpixel rendering in recent macOS versions; some say this makes anything below ~4K effectively “unusable” for text compared to Windows/Linux.
  • Workarounds like fake 2× scaling and third‑party tools (e.g. BetterDisplay) are mentioned.

Random bitflips vs systematic bugs

  • A minority speculate about random hardware errors (cosmic rays, marginal timing on GPU/VRAM) causing one‑off visual glitches.
  • Others consider that too rare to explain repeatable UI issues and lean toward real software bugs instead.

iOS Calculator and input UX

  • Many criticize the iOS Calculator: fast taps often fail to register, apparently due to touch‑handling that cancels a digit if the finger slides off the key.
  • Very similar complaints about lock‑screen passcode entry: sluggish, inconsistent feedback, and the same “tap then slide cancels” behavior.
  • Some defend this interaction as consistent with traditional “press‑then-drag-to-cancel” buttons; others call it uniquely confusing and buggy on the lock screen.

Broader Apple software quality and feedback process

  • Multiple anecdotes of long‑standing bugs in Notes, TextEdit, Screen Time, Maps, etc., and a perceived decline in Apple’s software polish.
  • Feedback Assistant and apple.com/feedback are cited; experiences vary from “bugs fixed in next minor release” to “ignored or closed as won’t-fix.”
  • Some lament the lack of a public bug tracker and rely on third‑party mirrors (e.g. OpenRadar) or HN itself to surface issues.

Vision, accessibility, and design

  • Several tie the bug to a larger theme: subtle misalignments, small/light fonts, and low contrast are hard on aging eyes.
  • There’s extended discussion of chromatic aberration and chromostereopsis in glasses, and how high‑contrast colored UI elements can appear misaligned or “3D.”
  • Commenters urge designers to anticipate deteriorating vision and favor clearer, higher‑contrast, and less fragile layouts.