Humans have already spent combined person-centuries trying to crack Linear A, and been able to guess a few words from context. If you use the sound values from

Humans have already spent combined person-centuries trying to crack Linear A, and been able to guess a few words from context. If you use the sound values from Linear B (which can be guessed via Greek), you can even try to pronounce them out loud. Unfortunately, that doesn't help at all unless you can find a related language to help guess more words. If it's a language isolate without living relatives, that would be simply impossible. However, that doesn't mean that trying to solve it with ML is completely useless. If you can do a century's worth of hypothesis-testing in a fraction of the time to discover that none of them work, at least humans will waste less time trying to solve an unsolvable problem.