To be fair, I don't see any sort of technical arguments on either side to justify their claims. You need some clue about its internal design and its current sta

To be fair, I don't see any sort of technical arguments on either side to justify their claims. You need some clue about its internal design and its current state to make an educated guess about the expected development time. Without that, 25 years is as valid a guess as 5 years. But I won't dismiss any claims outright. I'm all ears if anyone has any explanation to offer.