I. Intro"}]},"timeDescription":{"runs":[{"text":"0:00"}]},"thumbnail":{"thumbnails":[{"url":"https://i.ytimg.com/vi/aJfU6s5xj8Q/hqdefault.jpg","width":336,"height":188}]},"onTap":{"clickTrackingParams":"CH8Q0NAGGAAiEwiyoZm0w4mHAxV8UEECHVMZB8s=","commandMetadata":{"webCommandMetadata":{"url":"/watch?v=aJfU6s5xj8Q","webPageType":"WEB_PAGE_TYPE_WATCH","rootVe":3832}},"watchEndpoint":aJfU6s5xj8Q indir