To be honest i often find some variable or method names a little odd and i guess its written so you and your team can understand it.
As long as you are consistent with your naming then everything is fine and as long as you or your team can come back to the code weeks later and still know what it does then it doesnt really matter.
I’m still working my way through the content so have not got to this lecture so i cant really comment on the naming of this one specifically.
It sounds like it was a choice of shortening it from roamTimeTillChangeDirFloat which is ridonculous for a variable name and it does seem a little ambiguous renaming to that