Before we start, let us briefly intoduce ourselves. We are the authors, the authority. Throughout this lecture, we will ask you questions on how to proceed.

It is your responsibility to communicate to us in such a way that we understand. Nonetheless, in order to keep you on the right path, we will sometimes intentionally misunderstand you. We hope you don't mind.

This essay consists of 154 pages. It is overwhelming amount of information, and this lecture is the only navigation you have. Without it, you are likely to get lost.

When we ask for your consent, it is merely a performance of courtesy. You can cheat, of course, we won’t notice - but against whom? And for what purpose? You may stand up and leave at any point you like, but we strongly advice you not to.