3 ms·Relevant video: https://youtu.be/ykRmzS-FYSQ https://youtu.be/ykRmzS-FYSQby travbrack 8y agoRelevant video: https://youtu.be/ykRmzS-FYSQ https://youtu.be/ykRmzS-FYSQkalleboo 8y agoThis video was a lot more informative (and corrects some of the misinformation in the linked tumblr which states that Singer had the idea to develop it)ufo 8y agoHer investigation was very thorough. I was impressed.