That is an interesting observation. I started out low level in 8 bit land. To me, units broke down to whatever close representation fit into 8 maybe 16 bits... But, you are right! A BASIC with units would have been quite useful back then.

Would have caught a fair number of my bonehead errors.

Later, moving to C and various scripting languages, I just sort of kept doing the same thing. Work units out old school, then comment whatever equations made sense in the program, and then do math, deciding on fixed or floating point depending...

I will have to give Julia a look. Seems intriguing.