I was just joking. It wasn't meant to be a personal attack.
Hey its just my opinion that engineering is an easier problem than other business activities. Programming is more predictable. You can fix bad programmers.
Just a curious question... was writing the book harder than programming?
People are much harder to deal with. Much more dynamic. I'm confident the computer would not have downvoted me :)
BTW you apparently have a gazillion repo's in github but no blog ... writing is much harder than programming IMHO.