If any UFOs are highly advanced technology, are they of non-human origin?

Prediction market on manifold. If @/IsaacKing/are-any-ufos-actually-highlyadvance resolves YES, this market resolves to the correct answer. If we find out that they are advanced technology but it's unclear who created them, this market remains open until we have a definitve answer. "Human" means specifically the humanity we live in. If they were created by biologically-human creatures from a parallel universe's Earth, this market resolves to YES. If that market resolves NO, this resolves N/A.

Liquidity: $1,000. Resolves: 1/2/2050.