Unless you change state yourself in the mean time.

`deactivate` changes `$PATH` back to what it was when you ran `activate` for example, which isn’t likely to be what you want if you’ve changed it since. At least with a subshell you can know what state you’re returning to with <C-d>.

That is part of the problem with the `virtualenv` story in my eyes. It offers the illusion of isolation, but falls down in quite a few ways which are annoying when they do pop up.