law of attraction

I'm posting this to help a friend.  The following article explains (in part) why I no longer subscribe to the Law of Attraction (focusing on the positive, denying the negative, etc.).  

I read a better (easier-to-understand) article on this subject, but I can't find it at the moment, so in the meantime, here's this one.

For anyone who has tried without success, believing that if you could only think more positively or have more faith in the process that you'll finally manifest your dreams, you can stop beating yourself up.  It's not you.

I just have some questions.  Any ideas are welcome for one or all.  Some are progressive, so it might make sense to read them all in a row.

1) How can a person use the law of attraction and subjective reality to change their Universe?

2)  What about the bad things going on in the world?  (You can't unforget world hunger) 

3)  Is there a limit and why can't anyone pass it? 

4)  I mean, why can't people fly yet? 

5)  Why couldn't Buddha or Jesus fly?

6)  Is that the limit?