On March 14, 2018, the world lost a true legend. Stephen Hawking, a brilliant physicist and one of the most influential scientists of the modern era, passed away at the age of 76. Despite being diagnosed with amyotrophic lateral sclerosis (ALS), also known as "Lou Gehrig's disease," which gradually paralyzed his entire body and left him unable to speak or move, Hawking defied all odds and lived an extraordinary life.
Though confined to a wheelchair, he remained one of the most active and inspiring figures in science and culture. His groundbreaking books, such as *A Brief History of Time*, *The Universe in a Nutshell*, and *The Grand Design*, made complex scientific concepts accessible to millions around the world. He became a household name, not just for his genius, but for his wit, humor, and determination.
Hawking’s influence extended beyond academia. He appeared in popular TV shows like *The Big Bang Theory* and even had a cameo in *Star Trek: The Next Generation*. His unique voice, generated by a speech synthesizer, became instantly recognizable. In 2016, he joined Weibo, where he quickly gained over 3 million followers, proving that science could be both powerful and engaging.
But what truly set Hawking apart was his ability to communicate despite his physical limitations. His communication system evolved over time. Initially, he used a spelling board, but it was too slow. Eventually, he relied on a custom software program that allowed him to select letters using a single switch. As his condition worsened, his team developed a "Cheek Switch" that detected muscle movements on his face, enabling him to type with just a twitch.
His wheelchair was more than a mobility aid—it was a smart device equipped with advanced technology. It featured a powerful computer, text-to-speech software, and even a remote control that let him manage lights, TVs, and other devices in his home. This innovation gave him independence and control over his environment.
Hawking also expressed concerns about the future of artificial intelligence. He warned that if not properly regulated, AI could pose a serious threat to humanity. Yet, despite his fears, he remained a symbol of resilience, curiosity, and hope.
In the end, Hawking’s legacy is not just in his scientific contributions, but in the way he inspired people to think, dream, and never give up. His story reminds us that even in the face of adversity, the human spirit can shine brighter than ever.
**Editor: Yan Zhixiang**
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