Comment by ben_w

You need to know.

Here's an isochrone map renderer I got Claude to make: https://benwheatley.github.io/Isochrone/web/?region=berlin&s...

One of the failure modes was it running out of GPU RAM because it tried to allocate (multiple!) pixel buffers on a m-pixels-per-n-real-world-meters basis(!), and repeatedly didn't see the problem with this despite it being a vector graph on a normal screen.

I only even noticed this bug due to another bug where it got the bounding box for Portsmouth badly wrong by including the entire length of the ferry routes to France.

If I didn't understand how to use the JS console, it would have been stuck saying "I can't reproduce the problem"; and if I didn't understand the way computer graphics work I wouldn't have been able to recognise that multi-gigabyte pixel buffers are not normal, nor would I have been able to recognise that in this case those particular buffers were totally redundant.