Recurring revenue brings predictable cash flow, stable margins, and compound customer value. Investors love it, but more importantly, it lets you grow without chasing every single sale.
关于如何拥有并推销一个大胆想法，可以这样理解：
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encrypting message backups (including images and videos)
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A perfectly practicable 1930s technology, but you can already see the downsides.