I wish people used Julia more. Few years ago I reimplemented some MATLAB code for a novel algorithm [1] I wanted to use in my dissertation about psychometrics and Julia was great language to work with - and also the code ran for 20 minutes instead of 60.

[1] https://link.springer.com/article/10.1007/s11336-017-9581-x

How important was this saving of 40 minutes for the whole timeline of the project of writing your dissertation about psychometrics?