①This ability to make copies of DNA, as simple as it sounds, has transformed our world.

②Scientists use it every day to detect and address disease, to create innovative medicines, to modify foods, to assess whether our food is safe to eat or whether it's contaminated with deadly bacteria.③Even judges use the output of these machines in court to decide whether someone is innocent or guilty based on DNA evidence.

④The inventor of this DNA-copying technique was awarded the Nobel Prize in Chemistry in 1993. ⑤But for 30 years, the power of genetic analysis has been confined to the ivory tower, or bigwig PhD scientist work. ⑥Well, several companies around the world are working on making this same technology accessible to everyday people like the pig farmer, like you.

⑦I cofounded one of these companies. ⑧Three years ago, together with a fellow biologist and friend of mine, Zeke Alvarez Saavedra, we decided to make personal DNA machines that anyone could use.⑨Our goal was to bring DNA science to more people in new places.⑩We started working in our basements. ?We had a simple question: What could the world look like if everyone could analyze DNA? ?We were curious, as curious as you would have been if I had shown you this picture in 1980.

detect [d??tekt] v．查明，發(fā)現(xiàn)

accessible [?k?ses?bl] a．易接近的，易理解的

innocent [??n?snt] a．無辜的