Lost is back!

I don't want to ruin it for you if you haven't watched it yet!  But I can't hold it in.
So don't read this if you haven't...
But if you have, I have some questions starting with: WTF.  Next: who the F is Jacob's nemesis?  He's a really bad dude, I mean I remember him from other episodes but I don't remember much about him at all probably because they didn't want to develop him yet.  I can't believe he beat the crap out of Richard, I mean Richard is like a thousand years old and he just took him down like he was a regular human but he's not he's like super human.  I can't believe we found out what the smoke monster was finally...it's totally Not what I thought it was going to be!  I wonder what Miles heard Sayid say when he was dead, he must have known that he wasn't totally dead yet or something like that.  Or maybe it was something very important... It's really weird seeing Locke not as Locke.  I'm so happy that Lost is back, my brain is finally stimulated again.  I have to clear out these cobwebs!