Neat. This reminds me of watching The Ra Expeditions (1972) in the theater as a kid, about sailing papyrus boats across the Atlantic - (wiki)
https://en.wikipedia.org/wiki/Ra_(1972_film)
Heyerdahl's hypothesis was rooted in cultural bias bordering on racism and has never really been taken seriously. But he also did some amazing things and did actively promote ideas that were in opposition to racism. So yeah. Great adventurer, sub-par scientist, someone I would have enjoyed drinking beer with for an evening. But mostly wrong about stuff.