xavier, run a search on the net/web for “Hopfield Neural Net”. You’ll be having a lot of fun. 
How many Freudians does it take to change a light bulb?
2
One to change the bulb, One to hold the penis, … the mother…the ladder!
sorry
Heh.
“Only one, but the lightbulb really has to want to change.”
Hmm, und how many do zink it vill take?
It’s very interesting that you should focus on changing a light bulb, which involves screwing, driving the shaft into the receptacle, causing the electricity to flow. Tell me: Did you like your father? What about your mother? Does my cigar suggest anything to you?
“Sometimes a light bulb is JUST a light bulb.”
– a Neo-Freudian electrican
Which, as Wilhelm Reich (who was originally one of Freud’s proteges) will tell you, isn’t electricity at all, but orgone energy.