It's the ancient equivalent version to what the United States of American military calls the nuclear football., aka the Presidential Emergency Satchel or it could just be an ancient doctor's medical bag.
A bag that does not open? How about a weight! Only the giants carried them and also wore the same bracelets. I believe they needed tech to stay on the ground.
9:46: "There is no accepted evidence showing regular contact between Olmec civilization and ancient Mesopotamia."
That word "accepted" is doing a lot of work here. it's a surprisingly circular argument when you look into it. 1) "This evidence shows ancient transoceanic contact between the Near East and the Americas."
2) "Well, that evidence is fraudulent." 3) "Why is that?" 4) "Because it doesn't match any other evidence we have." 5) "What about all this other evidence over there that it matches shockingly well?" 6) "Sure, but that's all stuff we know to be fraudulent." 7) Repeat from point 3...