Noted: The companies acknowledge that completion rates are a concern and that their platforms are still works in progress. And to observers such as David Krakauer, that is as it should be. ?There are two ways to make something new,? says Krakauer, a biologist who directs the Institute for Discovery at the University of Wisconsin?Madison. ?You can design something that?s perfect on paper, and then try to build it. Or you can start with a system that?s rubbish, experiment and build a better one with feedback. That?s the Silicon Valley style ? but it?s also the scientific way.?
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