The summary is:
The video is about some of the unsolved mysteries in science, math and cryptography, such as the WoW signal, the Navier-Stokes equations, the P vs NP problem, the Zodiac killer ciphers, and the Somerton man. The video also gives some examples of solved or partially solved ciphers and codes, such as Enigma, the Zimmermann telegram, and the Babington plot. The video ends with a promotion for Nord VPN, a service that protects online privacy and security.
Here are some possible facts extracted from the text:
1. The US radio telescope picked up a strange signal from deep space in 1977, which was named the Wow signal after the word written on the printout by a researcher.
2. The Wow signal had no encoded information and was unmodulated, but it matched the frequency of the electromagnetic radiation given off by hydrogen, which some physicists predicted would be used by intelligent alien life for communication.
3. Fast radio bursts are very intense but very short bursts of radio emissions that appear throughout the sky, but their source and cause are unknown.
4. One fast radio burst, FRB 121102, repeated 93 times in one day in 2017, coming from the same source in a galaxy 3 billion light-years away.
5. The Navier-Stokes equations are a set of equations that describe how fluids move, but they are very difficult to solve and one of the Millennium Prize Problems that offer a million dollars for a proof of their existence and smoothness.
6. P versus NP is another Millennium Prize Problem that asks if a problem that can be verified quickly can also be solved quickly, which has implications for cryptography and optimization algorithms.
7. The Zimmermann telegram was an encrypted message sent by Germany to Mexico in 1917, proposing an alliance against the US, which was intercepted and decrypted by British intelligence and contributed to the US entering World War One.
8. The Zodiac killer was a serial killer who sent several encrypted messages to the press and law enforcement in the 1960s, but only one of them has been fully deciphered and his identity remains unknown.
9. The Somerton man was a man found dead on a beach in Australia in 1948, whose identity and cause of death are still unknown, and who had a piece of paper with the Persian phrase "tamam shud" (it's ended) and an encrypted message in his pocket.
10. NordVPN is a service that provides secure and private internet access by hiding your IP address and encrypting your online activity.