# The Three-Body Problem ## Metadata * Author: [Cixin Liu and Ken Liu](https://www.amazon.comundefined) * ASIN: B00IQO403K * ISBN: 0765377063 * Reference: https://www.amazon.com/dp/B00IQO403K * [Kindle link](kindle://book?action=open&asin=B00IQO403K) ## Highlights means that the laws of physics are not invariant across time and space.” “What does that mean?” — location: [990](kindle://book?action=open&asin=B00IQO403K&location=990) ^ref-35748 --- The game site’s URL caught his attention: www.3body.net. Shen took off the helmet and stripped off the haptic feedback suit. — location: [1154](kindle://book?action=open&asin=B00IQO403K&location=1154) ^ref-32727 --- http://www.qsl.net/bg3tt/zl/mesdm.htm. — location: [1319](kindle://book?action=open&asin=B00IQO403K&location=1319) ^ref-65487 --- pair of 3K glasses. — location: [1829](kindle://book?action=open&asin=B00IQO403K&location=1829) ^ref-23717 --- using universal, basic mathematical and physical laws, construct an elemental linguistic code that can be understood by any civilization that has mastered basic algebra, Euclidean geometry, and the laws of classical mechanics (nonrelativistic physics). — location: [2449](kindle://book?action=open&asin=B00IQO403K&location=2449) ^ref-47148 --- Scholars found that, contrary to the happy wishes of most people, it was not a good idea for the human race as a whole to make contact with extraterrestrials. The impact of such contact on human society would be divisive rather than uniting, and would exacerbate rather than mitigate the conflicts between different cultures. In summary, if contact were to occur, the internal divisions within Earth civilization would be magnified and likely lead to disaster. The most shocking conclusion of all was that the impact would have nothing at all to do with the degree and type of contact (unidirectional or bidirectional), or the form and degree of advancement of the alien civilization. This was the theory of “contact as symbol” proposed by sociologist Bill Mathers of RAND Corporation in his book, The 100,000-Light-Year Iron Curtain: SETI Sociology. Mathers believed that contact with an alien civilization is only a symbol or a switch. Regardless of the content of the encounter, the results would be the same. — location: [2511](kindle://book?action=open&asin=B00IQO403K&location=2511) ^ref-63782 --- Nicolai Kardashev once proposed that civilizations can be divided into three types based on the power they can command—for communication purposes, let’s say. A Type I civilization can muster an amount of energy equivalent to the total energy output of the Earth. Based on his estimates, the energy output of the Earth is about 1015 to 1016 watts. A Type II civilization can marshal the energy equivalent to the output of a typical star—1026 watts. A Type III civilization’s communication energy can reach 1036 watts, approximately equal to the energy output of a galaxy. Civilization on Earth is currently about a Type 0.7, not even a full Type I. — location: [2530](kindle://book?action=open&asin=B00IQO403K&location=2530) ^ref-59669 --- Hundred-Day War at Tsinghua, — location: [4371](kindle://book?action=open&asin=B00IQO403K&location=4371) ^ref-50029 --- Now, the ability for humans to manipulate micro particles at the macro level has reached a peak: We have computers and nanomaterials. But all of that is accomplished without unlocking the many micro dimensions. From the perspective of a more advanced civilization in the universe, bonfires and computers and nanomaterials are not fundamentally different. They all belong to the same level. That’s also why they still think of humans as mere — location: [4764](kindle://book?action=open&asin=B00IQO403K&location=4764) ^ref-1964 ---