I used to have a script on my personal site that would just continue to compute digits of Pi until your browser crashed. I finally took it down after too many recruiters and potential employers keep clicking on the link that said, "Don't Click This." and complaining about it.

I did the same thing when I was testing it. I would keep an eye on the system RAM resources graph as the script was running. Watching the RAM start to spike was oddly satisfying.

It's pretty scary to me how easy it is to crash a browser these days with something so simple.

It should take 415kB to store a million digit number, and the algorithm only needs to keep two of them. So, 1MB total to calculate a million digits of pi. I wonder if there are a lot of temporary allocations that build up until they get garbage collected.