If the barge is airtight, it will float just fine so long as both holes are not open at the same time.
Alternatively, a barge would float if the lower opening is located within a partial enclosure—a tube or a well—that extends to a level above the waterline. (Google the term "moon pool" to see what I mean.)
Airtight = suffocation
Alternatively, a barge would float if the lower opening is located within a partial enclosure—a tube or a well—that extends to a level above the waterline. (Google the term "moon pool" to see what I mean.)
So now you are trying to convince us that in addition to all the other mythology surrounding the Jaredite barges, they also had airlocks. Didn't anyone ever tell you that when you find yourself in a hole, the first thing to do is to stop digging LOL.