• Which of the ports do you like most? What does the book say about it?

the Unicode Perl port. Because it was the clearest.

• What is an "esolang"? What's the point of an esolang?

a concise, wierd programming language ablut more experimental programs and jokes especially because they are hard to program.

• In this list of esolangs, which is your favorite / which is most interesting to you? Why?

开？关！

because it's in Chinese!