FYI, Dont forget what the engineering and engineer are all about.
Few IC designer engineers are working 100% for fun and loved to work overtime.
IMHO, most of them are doing this as a way to make a living and earn big bucks.
On the forum, it seems tons of people are eagle to search for and learn this or that, but most of these peoples are just students or new grads from China.
How many people who are working in industry are still hungry for those knowledge? I will put a big question mark on it!
Cliff Cummings are looking for students to teach verilog, the papers he wrote was a strong weapon to gain fames for his business.
Ben Cohen, as some of the other techies did, began to sell his VHDL books as a publisher.
Can you persuade yourself that you are working just for fun only? Give me a break. If your lunch box are gone aboard, are you going to follow it or make another one on your own?