• As tech billionaires get wealthier, their superyachts are getting longer and more luxurious. • In recent years, Mark Zuckerberg and Jeff Bezos have each spent nine figures on their pleasure crafts. • These are the biggest superyachts owned by tech billionaires.

Size doesn't always matter, but it absolutely does in the rarefied world of superyachts.

Palaces at sea have long been a status symbol for the masters of the universe, a place to live a life of excess and network, far removed from the prying eyes of ordinary people.

As the rich get richer — the world's 10 richest people are $500 billion wealthier this year — their boats are getting longer.

The trend illustrates an unofficial yachting rule of thumb: The bigger the boat, the richer the owner. To own a 50-meter vessel, you li

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