I do get the argument against; “if we knock off Hitler how do we know we won’t get someone worse?” etc.
But then again, how do we know we won’t get something better?
So have fun with it, that’s what it’s for.
I might go back to '63 and burn down a book repository, much as I love libraries.
“What the hell?
I have to swim through milk again?
What is it with you people?
You can’t bathe in water like normal creatures?
Someone’s gonna get fucking bitten for this, I swear!”
It didn’t lack the sounds, but Hieroglyphics didn’t encode any vowels. It was a hybrid abjad. Hebrew and Arabic are at base abjads as well: even the letters which kind of go with vowels are actually consonants or semivowels: aleph/alif isn’t /a/, it’s the glottal stop /ʔ/. It’s just that it is typically (but not exclusively) associated with /a/. Yod isn’t /i/, it’s /j/. Waw isn’t /u/, it’s /w/. It’s just that they’re associated with the vowels.
The vulture hieroglyph isn’t “a”, it’s “ꜣ”, which is /ʔ/. It’s not “Ra”, it’s Rꜣ, which we pronounce “Ra”, and sometimes spell “Re” from historical habit. We don’t actually know what the vowel was, or even if it was open or closed syllables: was it /rɑʔ/, or /ræʔ/, or /rʌʔ/, or /rɔʔ/, or /rɑʔə/?
The “once you know the vowels” is a reference to the Stargate movie, where that’s the breakthrough to understanding the language spoken by the Goa’uld and their slaves.