At its core, a stream is just a sequence of data that arrives over time. You don't have all of it at once. You process it incrementally as it becomes available.
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Viren Swami believes today's ideas about romantic love can be traced back to medieval European stories like Lancelot and Guinevere
Former Labour Health Secretary Alan Milburn, who is heading it up, said when the inquiry launched that he would approach the issue "with sensitivity".