God of Go: The Rise of Superhuman Intelligence Without Human Knowledge - The Wire

Siby Abraham is a computer scientist specialising in artificial intelligence. He is an associate professor and head of the department of mathematics and statistics at Guru Nanak Khalsa College, Mumbai. How many years does it take for a child that does not know anything about English to master it at a Shakespearean level? Assume that there is no one to teach the child, and that the child only knows about the fundamentals of English grammar to begin with. Suppose also that there is no book, no help and no support (human or non-human) at all times.