E. O. Thorp has made a tremendous career from finding opportunities and properly exploiting them as advertised in this ground breaking book. There is no one in the financial world who has had a better risk-adjusted return than Thorp for the last 30 years.
Virtually unknown is the fact that years before, Thorp invented/discovered the formula that is attributed to Black-Scholes, with the exception of the risk-free interest rate factor, because of existing market structure that prevented interest from being a factor.
And Thorp's treatment of the Kelly Criterion makes this a standout work.
Since many have never read this book yet or tried to apply the principles that Thorp revealed in this book, it would be easy to dismiss this as some worn-out idea that has come and gone. Far from it. There is a reason that the few copies that were printed are still in demand.
The old saying is that those who can, do - while those who can't, teach. Thorp proved that he was the former.
If the principles from the book are understood the execution in different markets becomes apparent. In the last 20 years, I have applied the method in different forms in stocks, futures markets and LEAPS, with returns that exceeded the benchmarks stated in the book, with the same relative safety factors.
As long as there are people making investment decisions; who change their views as to whether a tradeable is cheap or dear, the opportunity for this method will remain infinite.
The concept IS the thing.