So we have Lisp where case does not (mostly) matter and Python where even whitespace matters. We have APL famil;y of languages which invented their own alphabet. In hindsight I wonder if there is any consensus or studies on which approach is the best?
In hindsight we know now what was problematic about the lisp reader conventions.
The default should have been lowercase case-sensitive, esp. for the ffi.
But we've only got uppercase case-insensitive, with flags for inverse (an ugly hack) and case-sensitive. This way you can call C or Java functions, but internally it's all case inversed. And still broken in some lisps