The Audacity of One-Based Array Indexing
Description
A three-panel meme using the viral Donald Trump and Jonathan Swan interview format. In the top-left panel, Donald Trump is shown speaking authoritatively while holding a paper. The bottom-left panel is a close-up of a paper he's holding, which displays the text 'arrays start at 1' in bold, black font. On the right, two panels show interviewer Jonathan Swan looking down at the paper with a furrowed brow of confusion, and then looking up in utter disbelief. This meme humorously personifies the deeply ingrained computer science debate over array indexing. The vast majority of modern programming languages use zero-based indexing (where the first element is at index 0). The meme presents the concept of one-based indexing (found in languages like Lua, MATLAB, and R) as a shockingly incorrect and controversial statement, with Swan's reaction representing the collective bewilderment of the mainstream developer community. It's a classic joke about fundamental programming principles and the 'holy wars' over language design choices
Comments
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There are only two hard problems in computer science: cache invalidation, naming things, and off-by-one errors caused by people who think arrays start at 1
Spec says arrays start at 1 - perfect, now the UI, the DB, and the cache can all be off by one in completely different directions
After 20 years in the industry, the only thing more terrifying than a production outage on Friday at 4:59 PM is discovering your new team's legacy codebase was written by someone who genuinely believed arrays should start at 1... and they implemented their own custom indexing wrapper to 'fix' C
Presenting 'arrays start at 1' in a professional setting perfectly captures that moment when a MATLAB or Fortran developer joins your Python team and casually drops this heresy in code review. The confused reaction is exactly what happens when you realize they're serious, and now you're debugging off-by-one errors in production at 2 AM because someone thought 'arr[1]' should return the first element. This is why we can't have nice things - or consistent indexing conventions across the industry
Arrays start at 1? That's just off-by-one job security for the next maintainer
Polyglot stacks are great until analytics ships 1‑based arrays, backend expects 0‑based, and your pagination becomes a distributed fencepost problem with an SLO
Arrays start at 1? Bold - finally a unified architecture where pagination, bitmasks, and ring buffers are all wrong in the same way