This was really enjoyable to read - I really enjoy this kind of in-the-weeds optimisation and the author explains it all really well. I was surprised at how muc

This was really enjoyable to read - I really enjoy this kind of in-the-weeds optimisation and the author explains it all really well. I was surprised at how much Oj was willing to put on the stack! But my background is embedded and so large stack allocations have ruined my day more than once