> From Libra's white paper this appears impossible.
How so? Can you be specific? I quote the whitepaper:
"The Libra Blockchain is pseudonymous and allows users to hold one or more addresses that are not linked to their real-world identity."
The only difference that I see is that you could mine Bitcoin anonymously. You could also buy Bitcoin with cash in a private transaction, but the same can be said for Libra.
Bitcoin can be used anonymously if you avoid KYC on/off ramps and specific transactions tied to your identity. Hard but possible. From Libra's white paper this appears impossible. That's a big difference.