眼睛是怎样进化出来的？
阅读原文（微博）| Telegraph
什么样的 #突变 能从零开始，把顽肉改造成这样精密的光学系统？ 进化论真的能回答这样复杂的问题吗？
虽然这篇万字长文远没有覆盖「动物 #视觉 #进化」的所有研究成果，但仅就内容而言，它又是你能找到的，把「#眼睛 是怎么进化来的？」这个问题回答的最完整的文章。
这篇文章摘自 #刘大可 的新书《生命的起源》。
@TingTalk：复眼对运动极其敏感，昆虫可以分辨每秒 240 帧的动画，达到了人眼的 10 倍，这同样带来了显着的生存优势——你想徒手抓苍蝇，那可难极了。
BY 庭说 TingTalk
Telegram’s stand out feature is its encryption scheme that keeps messages and media secure in transit. The scheme is known as MTProto and is based on 256-bit AES encryption, RSA encryption, and Diffie-Hellman key exchange. The result of this complicated and technical-sounding jargon? A messaging service that claims to keep your data safe.Why do we say claims? When dealing with security, you always want to leave room for scrutiny, and a few cryptography experts have criticized the system. Overall, any level of encryption is better than none, but a level of discretion should always be observed with any online connected system, even Telegram.
Since the violent storming of Capitol Hill and subsequent ban of former U.S. President Donald Trump from Facebook and Twitter, the removal of Parler from Amazon’s servers, and the de-platforming of incendiary right-wing content, messaging services Telegram and Signal have seen a deluge of new users. In January alone, Telegram reported 90 million new accounts. Its founder, Pavel Durov, described this as “the largest digital migration in human history.” Signal reportedly doubled its user base to 40 million people and became the most downloaded app in 70 countries. The two services rely on encryption to protect the privacy of user communication, which has made them popular with protesters seeking to conceal their identities against repressive governments in places like Belarus, Hong Kong, and Iran. But the same encryption technology has also made them a favored communication tool for criminals and terrorist groups, including al Qaeda and the Islamic State.
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