My suggestion is don't try and understand all of it but listen out for:-
1) 2.0 -two point zero and two point o (letter) - both are used and are correct.
You can see the definition and use of the letter 'o' here
2) One of the reasons why Scandinavian and Chinese people learn English.
3) English is not governed by an academy like France (Académie française) and Spain (Real Academia Española)
4) Words from other languages are common in English AND the original Hindi word is used – pyjamas (British English) pajamas (American English).