!agree

!rank

I use NordVPN, what purpose for VPN?

It will take some time before you need a VPN just for that.

The real problem is FaceBook is already well on its way to understand the contents of memes etc: https://code.fb.com/ai-research/rosetta-understanding-text-in-images-and-videos-with-machine-learning/

I am thinking of becoming a lecturer in a university of applied science, and just today, I have a lecture in C++ to check whether I am up for it...

C++ is the hardest programming language, in my experience, due to its complex nature, long history, and the fact that the programmer has to take responsibility for all of the things that are going on in a program.

There are few if any who understand 'all of c++", and even Bjarne claims that C++11 is like a new language. And its still under development.

@TrunksBish Just learn what is required for you to do what you want to do competently, and accept that your knowledge is not perfect when it comes to C++, very few people have close to perfect knowledge of C++.

all programming is learned through applying it, so books can be helpful, for knowledge and understanding, but actual skill comes from application of the programing.