{"version":"1.1.0","chapters":[{"startTime":169.0,"title":"Motivation"},{"startTime":281.0,"title":"What we did"},{"startTime":490.0,"title":"Concrete example: recruiting TaskRabbit worker to solve CAPTCHA"},{"startTime":664.0,"title":"Our Conclusions"},{"startTime":748.0,"title":"What would have happened if we’d gotten different results?"}]}