When I saw the OP's headline I thought "because mathematicians think with chalk the way I think with code". One of the reasons why I Loathe and Detest LLM-based development is because I've developed the (potentially very bad) habit of working through my ideas with (sometimes heavily commented or literate-programmed) code—and LLMs basically take that workflow away from me almost entirely.
I tried extending this analogy to dry erase boards, and all I could come up with was MS Paint
Chalkboards : whiteboards :: Emacs : Visual Studio Code
When I saw the OP's headline I thought "because mathematicians think with chalk the way I think with code". One of the reasons why I Loathe and Detest LLM-based development is because I've developed the (potentially very bad) habit of working through my ideas with (sometimes heavily commented or literate-programmed) code—and LLMs basically take that workflow away from me almost entirely.