失忆是一种怎样的体验? {!-- PGC_VIDEO:{"status": 0, "thumb_height": 360, "group_id": 6479021532910715406, "media_id": 5883413859, "vname": "\u4eba\u5982\u679c\u5931\u53bb\u8bb0\u5fc6\u662f\u4e00\u79cd...