Had to read Understanding Media while studying cinema in university many years ago. Smoked some weed and read a few pages at a time to try to get something from it.
Remember back, what I got is that the the content itself isn't as important as the medium that is used to propagate the message. So for example, it doesn't matter what applications we build, the phone or the computer itself already has embedded messages within it's purpose and design.
Donno if pot driven learning is the best, so what I got from it may not make any sense...