A language's script MUST be engineered to communicate ALL the required-dimensions of that language.

There is no exception to that, that I can imagine.

IF tonal, THEN tonality MUST be indicated..

simple principle, right?

in the cases of the Semitic languages, which leave-out vowels, their intent was to lock-out outsiders.

NOT-communicating with others, was part of the intent.

& .. well, that's their right, but it's created problems..

Not just the obious-ones:

When you force a population more-completely into memorization-paradigm, you make thinking-paradigm less-default

( the 2 modes compete for brain-resources: culturally, pick 1, & let the other be secondary )

So, the Semitic languages with the left-out defaults pushed memorization more heavily,

& .. that affects/alters/shapes history!

ALL language-choices have consequences..

( I'd actually want the ideal-culture to have at-least 5 different languages, simultaneously, by default:

• Engineering / English or German
• social-relativism / Japanese
• Indigenous-perspective/understanding, / probably Maya?
• scripture, origins / Sanskrit ( language-of-origins, not language-of-effects/symptoms, multiple people fluent in it have agreed )
• programming / Haskell ( get people to think correctly! )
• emotion / Arabic
• math

something like that..

Just switch languages/modes, to communicate within that-language's domain.

_ /\ _