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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'>Dear colleagues</span><span style='font-size:12.0pt'>，<span lang=EN-US><o:p></o:p></span></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'>This year's Nobel Prize in physics goes to black hole research today. When the curvature of space-time of a celestial body is so large that even light cannot escape from its event horizon, we call it a black hole. I. Once a black hole is formed, except for mass, angular momentum, and electric charge, all the previous material properties as objects disappear; II. The horizon area of the black hole is equal to its entropy (entropy equals negative information). These two issues form a close relationship between the research of black hole and information. The follow-up effect of this year's Nobel Prize in physics may lead to further thinking on the information in the future by astrophysicists, and lay a reverie foundation for the informational interpretation of matter several years later.<o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'>Best wishes and health,<o:p></o:p></span></p><p class=MsoNormal style='text-indent:0cm'><span lang=EN-US style='font-size:12.0pt'>Xueshan</span><span lang=EN-US style='font-size:12.0pt'><o:p></o:p></span></p></div></body></html>