About the book: 2020 / “What to do and what not to do” - two main questions of ethics. “A little entertainment and a little change” are the two main goals of this book. Alexander Silaev looks at the modern model of the world from an ethical point of view. Tells how to separate right desires from wrong ones, and put the latter on their wrong shelves. Breaks down mathematical failures and bad advice. Offers practice in ethical questions and honestly answer some of them: how long would it take for you to betray a friend? What border will you reach? can you sacrifice one person if the lives of five are at stake? Publishing layout saved in PDF A4 format.