Is it really?  Anyone ever seen anything like the following in an Ada

Thinking in Java, by Bruce Eckel, Chapter 3:

after taking three pages to introduce assignment, 95% of it devoted to
aliasing, the section ends with

  "Aliasing and its solution is a complex issue and, although you must
  wait until Chapter 12 for all the answers, you should be aware of it at
  this point so you can watch for pitfalls."