However, when Java is promoted as the sole programming language, its flaws and limitations become serious.

Defining OO as based on the use of class hierarchies and virtual functions is also practical in that it provides some guidance as to where OO is likely to be successful.

And no, I'm not a walking C++ dictionary. I do not keep every technical detail in my head at all times. If I did that, I would be a much poorer programmer. I do keep the main points straight in my head most of the time, and I do know where to find the details when I need them.

Our civilization depends critically on software, and we have a dangerously low degree of professionalism in the computer fields

There is no one "root of all evil" in software development. Design is hard in many ways. People tend to underestimate the intellectual and practical difficulties involved in building a significant system involving software. It is not and will not be reduced to a simple mechanical "assembly line" process. Creativity, engineering principles, and evolutionary change are needed to create a satisfactory large system.

I assume that a sufficiently skilled will be able to do anything not explicitly forbidden by the hardware.

After all, C++ isn't a perfect match for Java's design aims either.