So my hero (henceforth Bob) has become disgusted with all that society has to offer. He decides to set sail on a ship, never to return to the mainland supercontinent again (this is WWI tech, so you can assume no one is going to find him in Panthalassa, which is basically a large global sea with mainly small islands, and thought by all others living on the planet to be devoid of habitation. He takes his trusty lieutenant (Alice) and orders them to quickly build a ship with the limited resources of the island. My question is, how small is too small? The seastead/ship should ideally have enough resources (food, water, energy, etc.) to last four or five years at sea mapping a swath of midlatitude ocean and searching for new land. Resources include:
- Food: they don't want to starve, but also providing the full daily values of nutrition (they don't want to get scurvy, AND they don't want to be stuck eating fish for two years)
- Water: they don't want to die of thirst, and obviously drinking seawater isn't going to help them quench it. Remember this is WWI era tech, 1920s if you're stretching it.
- Energy: this planet is similar to Earth and therefore they don't want to be cold while exploring the midlatitude regions. It has to last four years. And of course, nuclear power hasn't been invented yet.
- Memory: Even if they have all of these equipment, they still want to be able to store memory of the old world. This can be waived for answers, but you get bonus points.
- Why: This is also for bonus points, as human-like animals with curiosity, intelligence, greed, etc. slightly below to slightly above humans, why haven't they explored this region with their WWI tech that can take pretty lengthy excursions at a time?