When I saw this thread I was expecting it to be one of those "how maek gam liek minecraft? i want maek gam liek minecraft. pls halp!!!" threads but instead I just got a vague, semi-motivational pep-talk, thinly disguised as a tutorial on game design.
As for your whole Minecraft was unique point, there were some other games with like Infiniminer out at the time, so it wasn't completely original.