system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How did the Polynesians have enough food and water to travel such great distances in canoes and why did they do it?

What made them think they'd ever find another island in the Pacific Ocean? It seems like many of them would have died trying.
gpt
Carrying enough food isn't really a problem, especially 2,000 or 3,000 years ago, when there were lots more fish in the sea.


I sailed 12,800 km, from Panama to New Caledonia on a 11-meter sloop.

We left with 100 liters of fresh water for 4 adults.  We caught rain running off the mainsail and put it in the tank.  Never was short of water.

We towed two fishing lures the entire time.  We caught good sized tuna every other day, usually two at the same time.  We would catch one or two dorado every 5th day or so.

As we emptied the jars of vegetables and other foods, we would refill with fish and a court bouillon, then water-bath can the jars on the boat's stove.

We arrived in Noumea with all the jars full of fish, which were given away to the skipper's friends.