It really can't be overstated; prior to this the amount of writing was basically zilch, and it was almost all grave markers. There wasn't really an expectation that would ever change, so this is a hugely pleasant surprise.
This contains just 70 legible letters and punctuation marks, less than your comment; so there's not really that much potential for understanding new words.
The largest Etruscan body of text we have is 1200 words, it somehow ended up as wrappings for a mummy in Egypt.
Yes, I didn't get why Annalee Newitz (Ars Technica) wrote: "the stele contains 70 legible letters and punctuation marks" and on the other hand writes:
"Scientists believe it will be full of words and concepts they've never encountered before"
It makes it out to be some kind of revolutionary Rosetta's Stone, but with 70 characters this is even less then the Faistos Disk of that other enigmatic civilization, the Minoans. I think 'full of words' is a bit overstated - in the Italian reporting it's said that because of the different genre compared to the regular finds we have the scholars will probably encounter some new words (which would be around < 10) probably including the deity of the temple.
So while Japanese tweeters could express more than English tweeters in the same character count, they generally don't choose to. That's pretty interesting.
Etruscan was written in a predecessor of the Latin alphabet we still use (albeit omitting most vowels), so no, it's not going to have a huge amount of information.
When you say zilch, are you saying no know examples in carved stone, you believe no written language was done before these examples, or something else? Further, what evidence leads you to believe these?
For example, some cave paintings cave estimated to at least 37,300 years old and some prehistoric figurines may be as old as 800,000 years.
It's the mysterious side of Roman culture. Also, the language itself is an isolate and of linguistic interest as language isolates are unusual in Europe.
Probably because their territories were conquered by the early Romans and little remained of their history after the Romans overtook those areas... And Romans are seen, along with the non-conquering Greeks, as _the_ pillars of Western Civilization.
It is more accurate to say that Roman culture is a blend of Latin, Etruscan, and (later) Hellenistic culture. The Romans may have finished them off, but not before appropriating massive amounts of culture: the household shrine, burial rites, and the fasces to name a few examples.
Fun fact that might pique one's interest: the fasces, which is still widely used to symbolize strength through unity, is believed to be of Etruscan origin.