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Lemmy resembles the old reddit experience so well that they even emulate the old reddit server performance
(self.showerthoughts)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
A message in a bottle is easier to use. Also, the maintenance cost is negligible, since the system is powered by renewable wave energy. The only downside is the lag, which can vary from a few days to several centuries.