> going from one to another valid expression is often faster if you can go through invalid expressions. I still don’t think you really comprehend what an inval

> going from one to another valid expression is often faster if you can go through invalid expressions. I still don’t think you really comprehend what an invalid expression is in this case. Ñ¥æd huiåp xiip ææææOP. It won’t make anything “faster” to “go through” these, as expressed extremely cleanly and fast in the last statement expressed in invalid English. Invalid expressions doesn’t mean “this mathematical expression expresses an inconsistency” like 3/0, it means “this expression isn’t a mathematical expression because it doesn’t follow the basic rules for the language” like “$/(!!@?3.3.3”